Oya
Yalvaç
Partner
+90 212 292 60 00
Oya is a European Patent Attorney (EQE 2015) and Turkish Patent Attorney with a background in molecular biology. She spent over a decade as in-house counsel in the pharmaceutical industry, gaining deep experience in patent strategy, regulatory interfaces, freedom to operate, and pharmaceutical patent disputes. Since joining DERIS in 2017, she has broadened her practice by working with a wider range of clients and technologies, covering both patent litigation and prosecution. Her role includes strategic advisory across the full lifecycle of complex patent portfolios. She represents clients before the Turkish IP Courts in high-stakes patent disputes, particularly in the pharmaceutical, biotech, and chemical sectors. Her work also involves prosecution and oppositions before the EPO and the Turkish Patent Office, as well as coordinating multi-country PCT national phase entries.
- Representing originator pharmaceutical companies in infringement and invalidity actions before the Turkish IP Courts, often coordinated with parallel proceedings across Europe
- Acting as local litigation counsel in a multi-jurisdictional dispute concerning a blockbuster drug
- Acting as local litigation counsel in a multi-jurisdictional patent dispute involving a genetic invention used in diagnostic technologies, coordinated across Türkiye and key European jurisdictions
- Advising on freedom to operate and launch strategies for high-value products in Türkiye
- Managing national phase entries and multi-country prosecution strategies in PCT applications, with hands-on coordination of local counsel in over 30 jurisdictions
- Representing clients in enforcement and invalidity disputes involving medical devices, polymers, and textile-based inventions
- Lifesciences Patent Matters in Türkiye (January 2025) - Lifesciences Patent Litigation & Remedies (January 2025)
Boğaziçi University, BSc, Molecular Biology and Genetics
Languages: Turkish, English
- Epi Committees
- Epi Tutor
- AIPPI
- FICPI
Deriş Patent Building Kabataş, İstanbul
+90 212 252 6122
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