Devin Patent is a trademark and patent attorneyship office in Istanbul. Searches, filings, oppositions, renewals, recordals and portfolio administration before TÜRKPATENT, EUIPO, WIPO and the EPO — one office for every stage, with each step weighed against the statute and the case law behind it.
Every Filing Is A Document Someone Will Later Read Against You.
Devin Patent is a trademark and patent attorneyship office based in Istanbul, acting for Turkish and international rights holders. Registered attorneys handle every stage of a right — searches, applications, oppositions, YİDK proceedings, renewals, recordals and portfolio administration before TÜRKPATENT, EUIPO, WIPO and the EPO.
What separates the office from most of the market is where its people come from. Our attorneys have legal training, and a specification, a claim set or an opposition brief is drafted the way a document is drafted when you expect it to be tested later — against the statute, against examination practice, and against the case law that sits behind both.
That shows up in ordinary decisions. Which classes to file and how to word them. How broadly to draft a claim before it stops being defensible. Whether to build evidence of use in the first year rather than assemble it under deadline pressure in the fifth. Whether a consent letter is worth asking for, and what it should say.
Portfolios are run on a single calendar. Opposition windows, renewal dates and annuity deadlines are docketed centrally, audits identify dormant rights and gaps in class coverage, and clients receive scheduled status reporting rather than an invoice and a certificate.
Court proceedings, compensation claims, criminal complaints, contract drafting and advisory work are not carried out here. They are handled by our law firm, Devin Law & IP, and a file moves between the two offices without losing its history.
Every file is handled by registered trademark attorneys who also hold a legal education; patent files are prepared together with patent attorneys, and the European route with European patent attorneys. Examination decisions are read against the statute and the case law behind them rather than accepted as administrative outcomes.
Searched Before It Is Filed
Nothing goes to the register before it has been searched. Availability, identity and prior art searches are run first, and where the result is negative we say so plainly instead of filing an application that will not survive examination.
One Calendar, Nothing Missed
Opposition windows, renewal dates, annuities and national phase deadlines are docketed centrally with layered reminders. Deadline discipline is the single most valuable thing an attorneyship office can offer, and we treat it that way.
Filed Abroad Under One Roof
Madrid, PCT, the European patent route, the Hague System, EUIPO and direct national filings are coordinated from Istanbul through a vetted associate network, so strategy, timing and budget stay consistent across every jurisdiction.
A Clear Route To The Courtroom
When a matter has to leave the register and go to court, it moves to Devin Law & IP with the full prosecution history behind it. Nothing is rebuilt from scratch and nothing is lost in the handover.
03
Attorneyship Services Across the Life of a Right
01
Trademarks
Availability searches, class and specification strategy, filings, oppositions and YİDK proceedings before TÜRKPATENT, with evidence of use built from the first year.
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02
Patents & Utility Models
Prior art searches, claim and specification drafting, TÜRKPATENT examination, PCT national phase, European patents, annuities and post-grant opposition.
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03
Industrial Designs
Novelty and individual character assessment, multiple applications, visual preparation, Locarno classification, oppositions and the Hague route.
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04
International Filing Systems
Madrid Protocol designations, PCT and the European patent route, Hague design registrations, EUIPO filings and direct national applications through our associate network.
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05
Watch, Renewals & Portfolio Administration
Bulletin and competitor watch, central docketing, renewal programmes, portfolio audits, cost planning and scheduled client reporting.
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06
Recordals, Assignments & Licensing
Assignments, mergers, name and address changes, licence and pledge recordals, chain-of-title repair and portfolio due diligence.
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07
Domain Names & Digital Assets
.tr allocation and documents, defensive registrations, UDRP and URS complaints, marketplace takedowns and social media impersonation.
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08
Geographical Indications
Menşe adı and mahreç işareti applications, technical specifications, control plans, emblem use, producer registers and EU applications.
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"From the first search to the last renewal — every legal step weighed in between."
Ranked in five practice categories in Türkiye — Uğurcan Tekin & İnci Özçilsal recognised as Rising Stars.
Recommended · 2026WTR 1000
Uğurcan Tekin recognised individually for trademark protection and international IP strategies.
Ranked · EMEA 2026The Legal 500 EMEA
Uğurcan Tekin — Next Generation Partner for Intellectual Property and Media & Entertainment.
Tier 2 · 2026Media Law International
Uğurcan Tekin — Top 10 Recommended Media Lawyers in Turkey.
Also ranked by the same directories in their 2025 editions — The Legal 500 EMEA, Media Law International, IP STARS and the WTR 1000.
05
Our Team
Uğurcan Tekin, LL.MPartner / Attorney at Law — Trademark Attorney
Alican Tekin, LL.MPartner — Trademark Attorney
Kadir Karasu, MBAPartner
Tevrat TekinCounsel / Attorney at Law
İnci ÖzçilsalAttorney at Law
Beyza ErdemirAttorney at Law
Şevval Ezgi DemirAttorney at Law
Mehmet Kerem KüçükTrademark & Patent Specialist
Berkay KizenFinance Specialist
Aleyna KalburcuLegal Trainee
Sıla UçarLegal Trainee
Uğurcan Tekin, LL.MPartner / Attorney at Law — Trademark Attorney
Alican Tekin, LL.MPartner — Trademark Attorney
Kadir Karasu, MBAPartner
Tevrat TekinCounsel / Attorney at Law
İnci ÖzçilsalAttorney at Law
Beyza ErdemirAttorney at Law
Şevval Ezgi DemirAttorney at Law
Mehmet Kerem KüçükTrademark & Patent Specialist
Berkay KizenFinance Specialist
Aleyna KalburcuLegal Trainee
Sıla UçarLegal Trainee
06
Insights
Competition
Developments in Turkish Competition Law — October 2026: The Catering Tender Investigation and the Media Markt Decision
19 October 2026 — Read →
Regulatory
Official Gazette Weekly Update — 12–18 October 2026: Extension of the Minimum Capital Deadline, the Muhammet Babur Decision on an Advertisement Board Fine and the Machinery Safety Regulation
19 October 2026 — Read →
Copyright
Playing Music from a Subscription App on Business Premises and Criminal Liability: The Decision of the 7th Criminal Chamber of the Court of Cassation of 5 May 2026
15 October 2026 — Read →
Data Protection
Turkish Data Protection Board Decisions — October 2026: The Resolution of Principle on the Monitoring of Corporate E-mail and Work Communication Channels and the Breach Notifications of 7 October 2026
12 October 2026 — Read →
Competition
Developments in Turkish Competition Law — October 2026: The EssilorLuxottica Commitments, and the Investigation and Interim Measure in the Instant Noodle Market
12 October 2026 — Read →
Regulatory
Official Gazette Weekly Update — 5–11 October 2026: The Regulation on Age Verification on Social Networks, the Resolution of Principle on the Monitoring of Corporate E-mail and Electronic Notification in Tax Matters
12 October 2026 — Read →
Maritime & IP
Undeclared Goods on Board: Conviction and Acquittal Criteria in Smuggling Cases
9 October 2026 — Read →
Media & Advertising
Advertising Board Decisions — Meeting No. 372: 5G Superiority Claims, Consumer Reviews and Blocking of Access to Review-Selling Websites
5 October 2026 — Read →
Data Protection
Turkish Data Protection Board Decisions — October 2026: Form of Response to Data Subject Applications and the Breach Notifications of 30 September 2026
5 October 2026 — Read →
Regulatory
Official Gazette Weekly Update — 28 September–4 October 2026: Annulment of the Phrase “Indefinitely” in Poverty Alimony, Real Estate Trade and the Distilled Spirit Drinks Communiqué
5 October 2026 — Read →
Competition
Developments in Turkish Competition Law — October 2026: The Catering Tender Investigation and the Media Markt Decision
19 October 2026 — Read →
Regulatory
Official Gazette Weekly Update — 12–18 October 2026: Extension of the Minimum Capital Deadline, the Muhammet Babur Decision on an Advertisement Board Fine and the Machinery Safety Regulation
19 October 2026 — Read →
Copyright
Playing Music from a Subscription App on Business Premises and Criminal Liability: The Decision of the 7th Criminal Chamber of the Court of Cassation of 5 May 2026
15 October 2026 — Read →
Data Protection
Turkish Data Protection Board Decisions — October 2026: The Resolution of Principle on the Monitoring of Corporate E-mail and Work Communication Channels and the Breach Notifications of 7 October 2026
12 October 2026 — Read →
Competition
Developments in Turkish Competition Law — October 2026: The EssilorLuxottica Commitments, and the Investigation and Interim Measure in the Instant Noodle Market
12 October 2026 — Read →
Regulatory
Official Gazette Weekly Update — 5–11 October 2026: The Regulation on Age Verification on Social Networks, the Resolution of Principle on the Monitoring of Corporate E-mail and Electronic Notification in Tax Matters
12 October 2026 — Read →
Maritime & IP
Undeclared Goods on Board: Conviction and Acquittal Criteria in Smuggling Cases
9 October 2026 — Read →
Media & Advertising
Advertising Board Decisions — Meeting No. 372: 5G Superiority Claims, Consumer Reviews and Blocking of Access to Review-Selling Websites
5 October 2026 — Read →
Data Protection
Turkish Data Protection Board Decisions — October 2026: Form of Response to Data Subject Applications and the Breach Notifications of 30 September 2026
5 October 2026 — Read →
Regulatory
Official Gazette Weekly Update — 28 September–4 October 2026: Annulment of the Phrase “Indefinitely” in Poverty Alimony, Real Estate Trade and the Distilled Spirit Drinks Communiqué
5 October 2026 — Read →
Devin Patent · Service Areas
Our Services
Eight service areas covering the full life of an industrial property right: searches and filing strategy, prosecution before TÜRKPATENT, international registration through Madrid, the PCT, the Hague System and EUIPO, watch and renewal programmes, recordals, domain names and geographical indications.
Eight service areas covering the full life of an industrial property right: searches and filing strategy, prosecution before TÜRKPATENT, international registration through Madrid, the PCT, the Hague System and EUIPO, watch and renewal programmes, recordals, domain names and geographical indications.
8 practice groups — move across the panels below to preview, click to open.
01Trademarks
01
Trademarks
A trademark file is decided long before a dispute begins: in the class list, in the wording of goods and services, in the evidence kept from the first day of use.
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02Patents & Utility Models
02
Patents & Utility Models
A patent is only as strong as its claims. What the claim covers decides whether a competitor can design around it, whether the office grants it, and whether it survives a later challenge.
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03Industrial Designs
03
Industrial Designs
Design protection under Industrial Property Code No. 6769 rewards preparation.
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04International Filing Systems
04
International Filing Systems
Protection stops at the border unless it is filed abroad. We run international programmes through the Madrid Protocol, the PCT, the European patent route, the Hague System and EUIPO, and directly through associates where a national filing works better.
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05Watch, Renewals & Portfolio Administration
05
Watch, Renewals & Portfolio Administration
A registration is the beginning of the work, not the end of it. Marks and patents lose value quietly: an opposition window closes unnoticed, an annuity goes unpaid, a class left uncovered becomes a competitor's opening.
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06Recordals, Assignments & Licensing
06
Recordals, Assignments & Licensing
Ownership that is not on the register is ownership you cannot rely on. Transfers, mergers, licences and pledges only take effect against third parties once they are recorded, and a gap in that chain tends to surface at the worst moment - during a sale, a financing round or an enforcement step.
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07Domain Names & Digital Assets
07
Domain Names & Digital Assets
A domain name is usually the first place a brand appears and the first place it is copied.
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08Geographical Indications & Traditional Product Names
08
Geographical Indications & Traditional Product Names
A geographical indication protects a name that belongs to a place rather than to a person.
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8 practice groups · hover to preview, click to openLegal Services · Trademark / Patent Attorneyship Services
Devin Patent
Our Team
Registered trademark attorneys, specialists and trainees — the same Istanbul team that stands behind Devin Law & IP, working alongside patent and European patent attorneys on patent files. Legal training on one side, register discipline on the other, working on the same files.
Partners & Counsel
Uğurcan Tekin, LL.MPartner / Attorney at Law — Trademark Attorney
Intellectual & Industrial Property, Media Law, IT and Data Protection (KVKK). Legal 500 EMEA 2026 — Next Generation Partner; ranked individually in the WTR 1000 2026, and by IP STARS and Media Law International in both the 2026 and 2025 editions — representing multimedia companies and global brands in high-stakes IP and media litigation.
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Alican Tekin, LL.MPartner — Trademark Attorney
Co-Head of the IP Department — international trademark portfolio management and cross-border projects. Registered trademark attorney advising local and international clients on trademarks, designs and copyright.
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Kadir Karasu, MBAPartner
Intellectual Property, Mergers & Acquisitions and Project Finance. Senior-level advisory on complex, multi-jurisdictional matters, large-scale IP portfolios and advanced financing structures.
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Tevrat TekinCounsel / Attorney at Law
More than forty years of litigation experience — labour law, lease & tenancy, enforcement & bankruptcy and contractual claims before all levels of the Turkish courts.
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Attorneys & Specialists
İnci ÖzçilsalAttorney at Law
Corporate law, contracts, KVKK/GDPR compliance and intellectual property. Legal 500 EMEA 2026 — Key Lawyer; IP STARS 2026 — Rising Star; active in compliance projects, data inventories and trademark prosecution.
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Beyza ErdemirAttorney at Law
IP portfolio management, licensing, designs & patents; KVKK compliance and media law. Legal 500 EMEA 2026 — Key Lawyer. Advises national and international clients and takes an active role in enforcement strategy.
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Şevval Ezgi DemirAttorney at Law
Maritime & shipping law — vessel finance, charter parties, cargo claims and P&I / H&M insurance disputes. Also advises on company formation and commercial agreements across Turkish and foreign legal systems.
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Mehmet Kerem KüçükTrademark & Patent Specialist
Electrical & electronics engineering background — patent drafting, monitoring and evaluation. Combines technical knowledge with legal process across trademark and patent procedures.
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Berkay KizenFinance Specialist
Budget planning, financial analysis and reporting across the firm's operations — bringing an analytical, process-oriented discipline to financial management.
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Legal Trainees
Aleyna KalburcuLegal Trainee
Trademark procedures, KVKK compliance support and general litigation. Studies law on a full scholarship at Istanbul Commerce University.
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Sıla UçarLegal Trainee
Trademark applications, opposition processes and data protection compliance projects. Istanbul University Faculty of Law graduate supporting registration, opposition and defence strategies.
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Devin Patent — Istanbul
About Us
A trademark and patent attorneyship office built on one idea: that a registration is a document which will one day be read against you, and should be drafted accordingly.
Who We Are
An attorneyship office run with the discipline of a legal practice.
Devin Patent carries more than 15 years of combined experience from its founders and solution partners. The office is built around registered trademark attorneys who also hold legal training — a combination that is still uncommon in the Turkish market and that shapes how every file is prepared. Patent and European patent files are prepared together with the patent attorneys among our solution partners.
We act for exporters, manufacturers, technology companies, producer associations, universities and individual inventors — portfolios ranging from a single national trademark to hundreds of rights spread across TÜRKPATENT, EUIPO, WIPO and the EPO. Files are grouped by right rather than by client size, so a small portfolio receives the same docketing discipline as a large one.
Work is reported, not just done. Clients receive scheduled status reports, renewal calendars and portfolio audits that identify dormant rights, duplicate filings and gaps in class coverage. Where a filing strategy carries risk, we set it out in writing before the application is made rather than after the refusal arrives.
Court proceedings, compensation and criminal actions, contract drafting and advisory work fall outside the scope of an attorneyship office. Those matters are carried out by our law firm, Devin Law & IP, which shares the same Istanbul team and the same recognition in international directories — so a file that has to be litigated arrives there with its full prosecution history intact.
Registered trademark attorneys who also hold a legal education, working with patent attorneys on patent files. Office actions, refusals and opposition decisions are read against the statute and the case law behind them.
Searched Before It Is Filed
Availability, identity and prior art searches come first. Where the result is negative we say so plainly rather than filing an application that will not survive examination.
One Calendar, Nothing Missed
Opposition windows, renewals, annuities and national phase deadlines are docketed centrally with layered reminders and scheduled reporting to the client.
Filed Abroad Under One Roof
Madrid, PCT, the European patent route, the Hague System, EUIPO and direct national filings coordinated from Istanbul through a vetted associate network.
A Clear Route To The Courtroom
When a matter has to go to court it moves to Devin Law & IP with the full prosecution history behind it — nothing rebuilt, nothing lost in the handover.
"Smart approaches to legal solutions with exceptional service."
Articles and commentary from our team. Trademark, patent, design, domain name and geographical indication pieces are the work of this office. Data protection, media, corporate and regulatory subjects fall within the practice areas of Devin Law & IP and are published jointly.
Anything outside trademark, patent, design, domain name and geographical indication work belongs to the practice areas of Devin Law & IP. Those articles carry a note at the top when you open them.
Playing Music from a Subscription App on Business Premises and Criminal Liability: The Decision of the 7th Criminal Chamber of the Court of Cassation of 5 May 2026
This article examines the decision of the 7th Criminal Chamber of the Court of Cassation dated 5 May 2026 (Docket No. 2025/4040, Decision No. 2026/5401), which held that playing music in a café through a music app paid for by a monthly subscription constitutes the offence set out in Article 71(1) of Law No. 5846 on Intellectual and Artistic Works (the “LIAW”). The Chamber rejected the operator's defence that paying the subscription fee also covered the copyright royalties, stated that the case law on the absence of intent in radio and television broadcasts cannot be applied to subscription apps, and upheld the conviction by majority. The dissenting opinion concerns the manner in which the evidence was obtained, not the merits. The article discusses the reasoning of the decision, the line of case law on which it relies and its consequences for businesses.
Uğurcan Tekin15 October 2026
Maritime & IP
Undeclared Goods on Board: Conviction and Acquittal Criteria in Smuggling Cases
This article has been prepared with a view to setting out, on the basis of decisions of the Court of Cassation, the criteria that determine the distinction between conviction and acquittal in smuggling cases concerning undeclared cigarettes, alcoholic beverages and fuel found on board ships in Turkish ports and territorial waters. The article first addresses the relationship between the smuggling offence and the sanction applied and tax assessed by the customs administration, together with the distinction between no declaration, under-declaration and over-declaration, and then examines the facts that are decisive in the decisions with regard to cigarettes and alcohol and to fuel, the personal liability of the master, the chief engineer and crew members, the rules on attempt, effective repentance and procedure, and the measures concerning the ship.
Şevval Ezgi Demir9 October 2026
Trademark
Acquiescence in Trade Mark Law: Different Rules for Invalidity and Infringement
This article has been prepared with a view to setting out the respects in which loss of rights through acquiescence in trade mark law differs as between invalidity actions and trade mark infringement actions. The article first describes the decisions of the 11th Civil Chamber of the Court of Cassation on the starting point of the five-year period in invalidity actions and the divergence between those decisions, together with its most recent decision, the decision of the 11th Civil Chamber of the Court of Cassation dated 4 June 2026, E. 2026/3054, K. 2026/3267. It then examines the criteria applicable in infringement actions and shows that even where loss of rights through acquiescence is not accepted in an invalidity action, the same silence may have consequences in an infringement action.
Uğurcan Tekin · Alican Tekin · Beyza Erdemir5 October 2026
Maritime & IP
Collision in the Sea of Marmara: Civil and Criminal Liability in Maritime Casualties
Taking the ship casualty off Silivri as its point of departure, this article examines the provisions governing collision, the scope of liability in damages, the operation of the criminal investigation, the administrative casualty investigation and the steps that must be taken in the first days following a casualty.
Şevval Ezgi Demir15 September 2026
IP Litigation
Trademark Invalidity Actions in Türkiye: Grounds, Acquiescence and the Difference from Administrative Revocation
A registered trademark is not always safe. A defect that existed at the moment of registration can lead to the mark being declared invalid by court judgment. The invalidity action is the vehicle for raising that defect. The Industrial Property Code No. 6769 governs the grounds of invalidity, the persons entitled to sue, and the loss of rights through acquiescence. This article examines the invalidity regime and how it differs from the administrative revocation route.
Uğurcan Tekin · İnci Özçilsal28 August 2026
Trademark
Proof of Use in Turkish Trademark Oppositions: The Five-Year Test
Under Article 19/2 of the Turkish Industrial Property Code, an opponent whose trademark has been registered for more than five years must, upon the applicant's request, prove genuine use of that mark in Türkiye. Where proof fails, the opposition fails with it. This article examines how the proof-of-use mechanism works, what counts as genuine use, and how both sides should prepare for it.
Uğurcan Tekin · Alican Tekin28 August 2026
Trademark
Trademark Licence Agreements under Turkish Law: Exclusive and Non-Exclusive Licences Compared
A trademark licence is the principal tool for monetising a mark without parting with it. Yet licence relationships built without regard to the licensing provisions of the Industrial Property Code No. 6769 expose both licensor and licensee to serious risk. This article covers the types of licence, the written-form requirement, recordal with the registry and the licensee's standing to sue.
Uğurcan Tekin · Alican Tekin28 August 2026
Trademark
Bad-Faith Trademark Filings in Türkiye: The True Owner's Toolkit
Those who try to register someone else's mark, a sign learned through a business relationship, or a name known in the market are treated as bad-faith applicants under Turkish trademark law. The Industrial Property Code No. 6769 keeps both the opposition and the invalidity route open against them. This article examines the concept of bad faith, its typical patterns, and the legal tools available to the true owner.
Uğurcan Tekin · İnci Özçilsal28 August 2026
Trademark
Protection of Well-Known Trademarks in Türkiye: When Does Protection Cross Class Boundaries?
Trademark protection is, as a rule, confined to the goods and services covered by the registration. For well-known marks, the Industrial Property Code No. 6769 crosses that boundary through two distinct mechanisms. This article examines the protection of well-known marks within the meaning of the Paris Convention and the beyond-class protection tied to reputation acquired in Türkiye, and sets out the differences between the two.
Uğurcan Tekin · Beyza Erdemir28 August 2026
Patent
Employee Inventions under Turkish Law: Who Owns the Invention, and What Is It Worth?
A significant share of Turkish patent filings rests on inventions developed by employees in the course of their employment. The employee-invention provisions of the Industrial Property Code No. 6769 regulate in detail who owns the invention, how the employer claims it, and what compensation the employee is owed. This article covers the service invention and free invention distinction, the notification and claim mechanism, and the question of compensation.
Uğurcan Tekin · Mehmet Kerem Küçük28 August 2026
E-Commerce & IP
Trademark Protection on E-Commerce Platforms: From Complaint Mechanisms to the Power of Registration
The centre of gravity of anti-counterfeiting has shifted from physical markets to e-commerce platforms. Platform complaint mechanisms can deliver fast results, but almost all of them require a registered trademark right to rely on. This article covers in-platform complaint procedures, the legal position of intermediary service providers, and the strategic value of registration in e-commerce.
Uğurcan Tekin · Şevval Ezgi Demir28 August 2026
Trademark
The Priority Right: The Invisible Calendar of International Filing Strategy
A first filing in one country gives its owner a head start in every other country for a defined period. The priority right born of the Paris Convention lasts six months for trademarks and designs and twelve months for patents and utility models. Managed well, these periods form the backbone of a global protection strategy; missed, they cause losses that cannot be repaired. This article covers how priority works and how to use it strategically.
Uğurcan Tekin · Mehmet Kerem Küçük28 August 2026
Trademark
Trade Name versus Trademark in Türkiye: Two Registries, One Market
A trade name is registered with the trade registry, a trademark with the registry kept by the Turkish Patent and Trademark Office. Two separate registry systems operating side by side in the same market create a frequent zone of conflict: the company carrying a term in its trade name meets the business that registered the same term as a trademark. This article covers the differences between the two rights and the principles for resolving the conflict.
Uğurcan Tekin · Beyza Erdemir28 August 2026
Trademark
The UDRP: A Global Arbitral Route against Domain Name Piracy
A domain name identical to your trademark has been registered by someone else and parked with a for-sale notice. The globally accepted way to recover it without going to court is ICANN's Uniform Domain Name Dispute Resolution Policy. This article covers the three cumulative conditions of a UDRP complaint, how the procedure runs, and how disputes differ under the .tr extension.
This information note has been prepared for the purpose of setting out the current approach to promotional and advertising activities, and of assessing the legal consequences that approach produces across different sectors, within the framework of the decisions published in respect of the meeting of the Advertising Board of the Ministry of Trade of the Republic of Türkiye dated 13 January 2026 and numbered 365.
In the Board's recent practice, promotional and advertising activities are subject to comprehensive scrutiny not only in terms of content, but also with respect to the language used, the visual elements, the manner of presentation and the perception created among consumers. Within this framework, while taking sectoral differences into account, the Board adopts an effects-based assessment in evaluating promotions that have the potential to influence the economic behaviour of the average consumer, and largely shapes its findings of infringement accordingly.
Among the decisions included in the Press Release relating to the meeting, those considered to shed light on frequently encountered promotional practices, to carry precedential value and to provide guidance across different sectors have been selected. The selected decisions have been classified under thematic headings, taking into account their common legal issues and sectoral implications. In line with the methodology adopted, the relevant decisions are first presented through brief summaries and direct quotations, followed by an assessment of their practical implications and the fundamental principles they establish.
01
Communication Services Sector
An examination of the Board's recent decisions concerning the communication services sector indicates that competition among operators is shaped principally through commitment models, discounted tariffs and subscription processes. The Board places honest competition and the protection of the consumer's economic behaviour at the centre of its analysis.
Within this framework, the Board accepts emphasis on freedom that does not directly target competitors as remaining within the permissible limits of promotional praise, while characterising the collection of fees where no service has been provided, or the steering of consumers toward more expensive packages by reason of technical failures, as an unfair commercial practice.
“The Board's settled approach: accessibility and transparency of the advantageous offers presented by operators. Causing consumer detriment by taking refuge behind technical impossibility, or failing to perform contractual obligations, attracts severe sanctions.”
02
No-Commitment Service Models and the Limits of Competition
In its Decision No. 2025/2316, the Board examined promotions published on social media bearing the expressions 'Isn't 18 Months of Commitment Rather Long?' and 'Choose Freedom!'. In respect of these advertisements, which the complainant alleged disparaged competitors, the Board determined that the promotions did not target any particular competitor and that the language used contained no negation but emphasised the advantages of commitment-free service. Assessing that the emphasis on 'freedom' was not contrary to the principle of honesty and remained within the permissible limits of promotional praise, the Board concluded that the promotions complied with the legislation.
03
Personalised Offers and Transparency of Access
The Board addressed the transparency of tariffs offered through mobile applications in its Decisions No. 2025/2484 and 2025/2485.
Transparent access — it was established that the packages offered through the mobile application were accessible to all users, and that more favourable tariffs could be reached by scrolling down the screen.
Tariff differentiation — the price difference between tariffs apparently offering the same data allowance and minutes (Uğurlu 15 GB and Değerli 15) was found not to be deceptive, on account of additional benefits (such as YouTube Premium) and price differences attributable to the absence of commitment. In both decisions no sanction was imposed, on the ground that there was no incorrect information.
Tariff transparency: the Board assesses whether the advantageous offer is genuinely accessible to every user.
04
Unfair Practices in Service Interruption and Termination Processes
The Board's most severe sanction is directed at undertakings that place consumers under an obligation without providing the service. In Decision No. 2025/2733, it was established that although the promised internet service had not been supplied, the undertaking sought to collect a 'modem fee' and a 'disconnection charge' by presenting the termination as though it had originated from the consumer's own will. These debt-creating activities, pursued by means of coercion and harassment, were held to be an aggressive commercial practice distorting the consumer's economic behaviour, and an administrative fine of TRY 600,000 was imposed.
05
Technical Failures and Misleading Redirection
In Decision No. 2025/2738 the Board examined the 'Cep Magnet Fırsat 100 GB' tariff. Although the consumer had satisfied the registration requirement by SMS, the failure to provide the benefit of the tariff on the ground of a 'technical fault in the system', and the redirection of the consumer by customer services toward more expensive packages, were found to be deceptive. The Board, noting that even an isolated technical failure had caused consumer detriment and was contrary to the principles of honest competition, imposed a cessation order.
Food supplement and health-claim advertising drew some of the heaviest sanctions.
06
Consumer Durables and Technology Sector
An examination of the Board's decisions concerning consumer durables and technology indicates that promises of 'trade-in support' and 'fast delivery' offered through e-commerce platforms are a particular focus of supervision. The Board emphasises that such ancillary benefits and logistical promises — determinative in the consumer's purchasing decision — must be in full conformity with actual practice.
Within this framework the Board accepts that systemic errors cannot take precedence over committed monetary support, and that the overall perception created in the consumer by the expressions used in relation to the delivery process will be taken as the basis of assessment.
“Advertised campaigns must be supported by operational processes. Failures in complex processes such as trade-in, or in logistical promises, are characterised as promotion that does not reflect the truth and is misleading.”
07
Trade-In Support Promises and Operational Obligations
In Decision No. 2026/4 the Board examined a campaign offered through an e-commerce site under the heading 'Send your old phone, device value + TRY 3,000 trade-in support'. It was established that although the consumer had sent the old device and accepted the offer, the trade-in support was not paid on the ground of a 'systemic error'. The Board, stating that the advertisement in question did not reflect the truth and that technical failures do not alter the consequence that the consumer has been deceived, decided to impose a cessation order.
08
Delivery Promises and Management of Consumer Perception
The Board assessed the overall expectation created in the consumer by expressions used in relation to logistics processes within the scope of file no. 2025/1253. The expression 'Fast Delivery: Shipped Within 1 Day', used for a white goods product on a shopping platform, was made the subject of examination.
The Board drew attention to the fact that such expressions create in the consumer a perception and expectation that the product will actually be delivered within a very short time from the order.
It was established that the difference between the time for dispatch and the actual delivery time misleads the consumer, and that the emphasis on 'fast delivery' is perceived as a promise covering the entire process.
Accordingly, it was concluded that the use of such expressions where delivery in fact takes a long time is a misleading element influencing the purchasing decision, and a cessation sanction was applied.
Logistical promises are assessed on the overall expectation they create, not on the literal wording.
09
Food, Food Supplements and Restaurant Services
The Board's supervisory strategy in the food, food supplement and restaurant sectors is constructed principally upon the protection of public health, the accurate information of consumers and the establishment of an environment of honest competition. In its examinations in these sectors the Board takes as its basis not merely the expressions in the advertising text, but the holistic perception created in the average consumer by the visual and linguistic elements of the promotion taken as a whole.
10
Conditions for Use of the Terms 'Natural' and 'Contains No Artificial Colouring'
In Decision No. 2025/3752 the Board noted that the principles governing use of the term 'natural' are set out in the Guide on the Turkish Food Codex Regulation on Food Labelling and Consumer Information, Article 12 of which provides that: 'The term “natural” may be used to describe foods consisting of a single component (containing no added component including additives, flavourings and the like), which have not been subjected to any process other than physical, enzymatic or microbiological processes, which are of plant, algae, fungal, animal, microorganism or mineral origin, and to which no process causing a significant change in their natural structure has been applied.' On this basis the expression 'completely natural' used in the promotions was found to be contrary to the legislation and deceptive to consumers.
Likewise, the use of the expression 'contains no artificial colouring' was held unlawful, pursuant to Article 12 of the same Guide, which states: 'Since there is no definition of “artificial colouring” in the legislation, expressions such as “contains no artificial colouring” may not be used.'
11
The Expression 'Gripno' Creating the Impression of a Flu-Preventing Food
In the same Decision No. 2025/3752, it was established that 'the product name “Gripno” of the powdered beverage product named “Nazo Gripno”, which also appears on the company's website, is contrary to the aforementioned legislation and misleading to consumers, in that it creates the impression that the product will prevent influenza.' Particular care must therefore be taken in the use of product names denoting a disease.
12
Extension of Authorised Health Claims Through Visual Elements
In the Board's Zarbee's Wellness decision no. 2025/4230, it was established that although function claims compliant with the legislation were used in the text, the 'sneezing character' in the advertising film and the coherence of the narrative created a perception of 'protection from or treatment of illness' in the consumer. This was assessed as exceeding the boundary of information and producing an effect extending the health claim, and a cessation order was issued.
13
Positioning Products in 'Medicine-Like' Language Beyond Food Supplement Status
In the Board's Gripe Water and Cough Syrup decision no. 2025/4118, it was established that claims such as offering 'a solution to gas pains and digestion', particularly in the promotion of infant products, remove the product from food status and place it in a position resembling a medicinal product. Since the effects asserted require scientific proof and carry a risk of misleading consumers, the promotions were found contrary to the legislation.
14
Metaphysical Claims and Concealment of Advertising Character (Surreptitious Advertising)
In the Board's SedaHealing decision no. 2025/3108, the use in social media promotions of 'Healing Coffee' and food supplements of claims such as 'good for the throat chakra' and 'preparing for childbirth' was assessed as unlawful, exceeding the limits of authorised health claims and indeed attributing metaphysical or therapeutic outcomes of contested scientific verifiability. In addition, since directing consumers toward a product or brand without expressly stating that the promotion is an advertisement results in the concealment of the commercial character of the content presented to the consumer, the matter was addressed within the scope of the 'surreptitious advertising' characterisation. On the basis of this two-fold finding of infringement, suspension of the advertisement was ordered.
In food supplements, the Board assesses the holistic perception created by text, visuals and narrative together.
15
Other Goods and Services
An examination of the Board's decisions under the broad heading of 'Other Goods and Services' shows that the Board subjects to close scrutiny not only the physical characteristics of a product but also financial promises, campaign-combination conditions, trademark rights, logistical promises and environmental claims. From real estate projects carrying financial risk to 'cheapest' claims in the retail sector, the Board sanctions every form of uncertainty affecting the consumer's economic decision.
“The fundamental principles are the burden of proof and clarity: concrete and verifiable data must appear in the main body of the advertisement, not in general expressions capable of exploiting the average consumer's lack of information.”
16
Concealment of Financial Risk and Promises of Guaranteed Return
In Decision No. 2026/7 the Board examined advertisements of a construction company headed 'Secure Income, Profitable Investment' and 'A Second Pension'. The Board found misleading the creation of a perception of a 'guaranteed return' while disregarding the risks inherent in financial markets. Although the return tables were based on official data, an administrative fine of TRY 863,580 was imposed because explanatory information indicating that these returns did not constitute an undertaking was not included in the main body of the advertisement.
17
Campaign-Combination Promises and Restrictions in Application
In Decision No. 2025/3927 concerning the automotive sector, although the expression 'may be combined with additional campaigns' appeared in discount advertisements specific to a car model, the exclusion at the implementation stage of a TRY 75,000 discount opportunity available on the website was found deceptive. The Board held that restricting in application the expectation created in the campaign text is contrary to the consumer's right to be accurately informed.
18
Infringement of Trademark Rights and Deceptive Redirection
In Decision No. 2025/1878, it was established that a travel agency used the competing 'Obilet' brand as a keyword in Google searches and thereby redirected consumers to its own site. An administrative fine of TRY 863,580 was imposed on account of this redirection, which exploited the trust attaching to the competitor's brand, together with unverified statements regarding TÜRSAB membership.
19
Disparaging Advertising and Targeting of Competitors
In Decision No. 2025/3844 the Board examined a listings platform's advertisements depicting estate agents as 'convicts' in yellow and black, and disparaging a rival platform through the word 'Sahiden'. The Board held that expressions such as 'this is robbery', unsupported by concrete evidence, were contrary to the principle of honesty and disparaging.
20
Inability to Substantiate 'Always Cheap' Claims
As a result of examinations conducted in supermarket chains, it was established that general claims such as 'Always Cheap' and 'Good Things for Less' could not be substantiated in research conducted on basic consumer goods. The Board found misleading the failure to support with data the perception of 'always and in every product' created by the word 'always'.
21
Confusion in Discount Rates and Unimplemented Campaigns
In the retail sector, the failure to remove expired posters in discounted sales, or the use of mathematical expressions giving rise to confusion such as '80% + 20%', is subject to sanction; in particular, the determination that the price during the campaign period was the same as the pre-discount price was characterised as deceptive advertising (file no. 2025/1310).
22
Environmental Claims (Greenwashing) and the Burden of Proof
In Decision No. 2025/3182 the Board examined the use, without scientific data, of general concepts such as 'sustainable' and 'environmentally friendly' in the promotion of a water purification device. The Board required that comparative environmental claims be proven by scientific studies prepared by accredited or academic institutions.
23
Surreptitious Advertising
In Decision No. 2025/2562 the Board concluded that 'the services of various undertakings were featured together with their visuals, that distinguishing elements such as the trade names and addresses of these undertakings were included, and that surreptitious advertising was accordingly carried out by directing consumers to these undertakings; that through these posts consumers' lack of information was exploited; and that the promotions in question were therefore deceptive and misleading to consumers.' The Board conducts its surreptitious advertising examination with considerable rigour.
24
General Assessment and Conclusion
The decisions taken at the Advertising Board's 365th meeting demonstrate once again that, as of 2026, its supervisory strategy is built upon transparency and the protection of consumer perception. The Board gives no weight to the defence that promotions are intended solely to 'inform'; it takes as its basis the commercial-incentive effect created in the consumer's mind by the content, the visuals and the manner of presentation. Visual narratives creating symptom or protection associations in food supplements, and even the slightest form of guidance in the health sector, are subject to sanction.
The accuracy of promises such as 'best price', 'always cheap' or 'fast delivery' must be demonstrable by scientific and concrete evidence as of the moment the advertisement is published. Invoking systemic errors or technical failures as grounds for not providing promised advantages — trade-in support, discounted tariffs and the like — is accepted by the Board as a deceptive commercial practice.
In conclusion, advertising and promotional activities should not be confined to the literal wording of the legislation; the Board's settled practice of restrictive interpretation must also be taken into account.
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Independent international directories consistently rank our team among the leading practitioners in intellectual property and media law in Türkiye. Our intellectual property and media practice has been recognised by The Legal 500 EMEA, the WTR 1000, Managing IP's IP STARS and Media Law International in both the 2026 and 2025 editions. Click any ranking below for the full details.
2026Current Edition
The rankings published for the current cycle — across intellectual property and media law.
Five Categories · 2026IP STARS — Managing IP
In the IP STARS 2026 rankings published by Managing IP, Devin Law & IP is ranked in five practice categories in Türkiye — with Uğurcan Tekin and İnci Özçilsal recognised among Türkiye's leading IP practitioners as Rising Stars, supported by eleven client testimonials on prosecution, enforcement and opposition work.
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Recommended · 2026WTR 1000
In the 2026 edition, World Trademark Review's WTR 1000 recognises Uğurcan Tekin individually for trademark protection and international IP strategies — identifying the world's leading trademark professionals through extensive research among clients and peers, including his work on global strategies for multinational corporations and proceedings before WIPO.
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Ranked · EMEA 2026The Legal 500 EMEA
Ranked in the Legal 500 EMEA 2026 edition in Intellectual Property and Media & Entertainment. Uğurcan Tekin is listed as a Next Generation Partner, with İnci Özçilsal and Beyza Erdemir recognised as Key Lawyers — supported by directory commentary and client testimonials on the team's patent, advertising and brand protection work.
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Tier 2 · 2026Media Law International
In its 2026 rankings, Media Law International places Devin Law & IP at Tier 2 of the Türkiye country chapter among the leading law firms for media law, with Uğurcan Tekin named among the Top 10 Recommended Media Lawyers in Turkey — reflecting expertise in digital media regulation, content management and broadcasting standards.
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2025Previous Edition
Recognitions earned in the preceding ranking cycle by the same intellectual property and media practice.
Ranked · EMEA 2025The Legal 500 EMEA
Ranked in the Legal 500 EMEA 2025 edition in Intellectual Property and Media & Entertainment, with Uğurcan Tekin as practice head. The editorial assessment highlighted advisory work for the full spectrum of media stakeholders — from multinational media companies to individual actors, directors and agents — and the team's depth in digital media, online content and data privacy.
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Ranked · 2025Media Law International
In its 2025 assessments, Media Law International recognised the practice as one of Türkiye's leading media law firms, with Uğurcan Tekin selected among the ten recommended media law practitioners in Türkiye.
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Recommended Firm · 2025IP STARS — Managing IP
In the IP STARS rankings published in 2025 by Managing IP, the practice was listed among the recommended firms in Türkiye — international recognition of the breadth of experience and strategic approach the team brings to intellectual property work.
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Recommended Firm · 2025WTR 1000
In the 2025 edition, World Trademark Review's WTR 1000 listed the practice among the recommended trademark firms in the Türkiye ranking — reflecting the team's work on filing strategy, portfolio management and contentious trademark matters for domestic and international clients.