Oya Yalvac

Senior Associate at Deriş Patents and Trademark Agency AS

Oya Yalvac is one of the few European patent attorneys who has passed the European qualifying examination as a Turkish professional. She has worked in the pharmaceutical industry as an in-house patent attorney for more than 10 years and specialises in patent litigation – namely, infringement, invalidity actions and actions for declaration of non-infringements.

Ms Yalvac is also an adviser and expert for local R&D and innovation centres, as well as the technology transfer offices of Turkish universities.

Ms Yalvac also has in-depth experience in patent oppositions and freedom to operate. She has occasionally been appointed as a court expert for patent disputes before the Turkish IP courts.


  • Counselling an internationally known apparel and advanced textile company for patent infringement action
  • Counselling in patent litigation for SEPs
  • Counselling an internationally known chemical company in a patent infringement action
  • Counselling in patent litigation for 3D printing technology
  • Drafting patents for a leading textile and fibre company


Ms Yalvac holds a BSc in molecular biology and genetics from Boğaziçi University.


Ms Yalvac is fluent in English.


Ms Yalvac recently published “Federated European Patent Register – an overview” on the International Law Office.

Admissions and memberships

  • European patent attorney
  • Chartered patent and trademark attorney 
  • Turkish representative of the Biotechnology Committee before the Institute of Professional Representatives before the European Patent Office (epi)
  • epi tutor

Professional associations


Firm details

Deriş Patents and Trademark Agency AS
Inebolu Sokak 5 Deris Patent Building
Setustu Kabatas
Istanbul 34427

Contact details

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