Oktay Bilgin

Lawyer I Founder I CEO

Oktay Bilgin is the founder of Bilgin Law and IP Office and the current CEO of B Corporate. He specializes in advising companies, developers, employers, and professional teams and also specializes in dispute avoidance and resolution mechanisms, and also IP Prosecution and Litigation.

İrfan Demirel

General Coordinator I Lawyer

İrfan Demirel graduated from Marmara University Faculty of Law in 1994. He specializes in Criminal Law, IP Prosecution, and Litigation.

Noyan Çelik

Lawyer I General Assistant Coordinator I IP Expert

Noyan Çelik graduated from the Dokuz Eylül University in 2000. He is a Lawyer and Trademark Attorney at Bilgi Patent Office. He specializes in Intellectual and Industrial Property Law and Practices.

Hilal Lefkur

Senior Managing Director I Lawyer

Hilal Lefkur has graduated from Istanbul University Faculty of Law with an honor degree in 2010. She completed his Master's degree in "Protection of the Family and Prevention of Violence Against Women" at Istanbul University Faculty of Law, Department of Public Law. She specializes in the fields of Criminal Law, Trademark and Patent, Rental Law, Family Law.

Ali Öz

Coordinator I Trademark and Patent Specialist

Ali Öz graduated from Anadolu University Faculty of Economics in 1998. He specializes in Intellectual Property and Marketing.

Ender Karadayı

Coordinator I Trademark and Patent Specialist

Ender Karadayı graduated from Selçuk University Electrical and Electronics Department in 2004. He is working as a Coordinator and Trademark and Patent Specialist.

Barış Bektaş

Senior Trademark and Patent Specialist

Barış Bektaş started to work in the enforcement division at Bilgin Law Office. He is currently the Head of the Accounting and Enforcement division of the Patent Office.

Gül Tufan


Gül Tufan graduated from the Istanbul Commercial University Faculty of Communication in 2018. She is an Expert in Advertising and Strategic Communication.

İbrahim Çelebi

Trademark and Patent Specialist

İbrahim Çelebi graduated from Kocaeli University Accounting department in 2011 and Anadolu University Finance department in 2018. He specializes in patents, utility models, and IP prosecution.

Rümeysa Şimşek

Trademark and Patent Sales Consultant

Rümeysa Şimşek graduated from the Istanbul Development University Department of Nutrition and Dietetics. She is a Trademark and Patent Sales Consultant at the Bilgi Patent Office.

Efecan Bektaş

Trademark and Patent Sales Consultant

Efecan started as a trainee at Bilgi Patent office and now he is working as a Trademark and Patent Sales Consultant.

Derya Altun

Trademark and Patent Specialist

Derya Altun graduated from Technical Anatolian School Child Development Department. She has been working as a Trademark and Patent Sales Consultant at Bilgi Patent Office.