Deriş Attorney-At-Law Partnership

Deriş Attorney-At-Law Partnership provides rapid, reliable and client-tailored private consulting and attorney services for clients looking to settle disputes regarding trademarks, patents, industrial design and other intellectual and industrial property rights.

Based in Istanbul, Deriş has a 107-year history pertaining to the establishment of IP rights, as well as the protection and enforcement of such rights.

Today, Deriş consists of two legal entities: Deriş Patents and Trademarks Agency AS, which counsels, files, prosecutes, registers and manages IP rights worldwide; and Deriş Attorney-At-Law Partnership, which provides legal counsel, assistance in contentious and non-contentious matters and representation before the IP, civil and commercial courts.

The team consists of 30 attorneys at law and 28 registered trademark and patent attorneys and six European patent attorneys. With administrative and support staff in the trademark, search, design patent, patent and litigation departments, the firm has more than 85 collaborators.


  • M N Aydın Deriş (founding partner/senior counsel)
  • N Serra Coral (managing partner)
  • E Kerim Yardımcı (managing partner)
  • Okan Çan (partner)
  • Oya Yalvaç (partner)

IP practice

Deriş is specialised to exclusively handle IP, IT and media-related cases for contentious or non-contentious matters. The partnership has an agile and cost-conscious approach in pragmatically combining and coordinating a tailored solution in complex matters consisting of developing IP awareness and enforcement strategies, conducting investigations on counterfeits and evaluating their results, preparing and organising customs seizure of counterfeit goods, serving cease and desist letters to prevent infringing acts, conducting negotiations for settlement agreements and instituting civil and criminal court actions.

Deriş also has a strong patent litigation and prosecution team with the litigators and in-house Turkish and European patent attorneys.

Besides being highly active in litigation, the Deriş team also implements alternative dispute resolution policies before or during litigation. In this respect, our team is in contact with the WIPO Alternative Dispute Resolution Centre and actively participates in arbitration and mediation training. Mr Yardımcı has been appointed as a panellist and arbitrator before WIPO for Uniform Domain Name Dispute Resolution Policy matters. Mr Çan has been appointed as chartered mediator with another member of the firm before the Ministry of Justice in Turkey.

Deriş provides services such as drafting, preparing, filing and prosecuting the application of industrial property rights in Turkey and through our first-rate worldwide collaborators.

Deriş’s patent, trademark and industrial design departments prosecute applications in other countries through the firm’s network of correspondents, as well as directly with international authorities such as WIPO. As Turkey is a member of international conventions such as the Madrid Protocol, the Hague Agreement, the Patent Cooperation Treaty and the European Patent Convention, Deriş files and prosecutes directly international trademark, design and patent applications under these conventions.

Deriş considers IP rights to be assets and has structured its own organisation to provide services with a proactive approach and to offer clients a complete range of legal services. We emphasise a personalised collaboration with our clients and believe in fostering close working relationships that result in long-term partnerships.

With this in mind, Deriş’s approach is holistic and aims to facilitate business decisions made by acting analytically and proactively to identify upfront potential sources of conflict, eliminate legal uncertainty and understand and assess each and every detail that might affect the parameters of protection and enforcement in order to avoid unnecessary litigation and ensure trouble-free and uninterrupted operation.


  • Intellectual property
  • Trademark litigation
  • Patent litigation
  • Trademark and patent prosecution
  • Anti-counterfeiting
  • IP and IT transactions
  • IP due diligence
  • Technology licensing
  • Copyright
  • Unfair competition
  • Trade secrets
  • Personal data protection
  • Media and entertainment law
  • Consumer law
  • IT law
  • Reputation management


  • English
  • French
  • German

Contact details

Deriş Attorney-At-Law Partnership
Inebolu Sokak No 5 Deriş Patent Building
Setustu Kabatas
Istanbul 34427

Professional contacts

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