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Key contacts
Practitioner: Tolga Çaylak
Practitioner: İhsan Karaca
Practitioner: Aslı Özdemir
Practitioner: Damla Duyan
Practitioner: Furkan Ali Dönmez
Practitioner: Çağla Özyaşamış
Practitioner: Kuzey Güçlü
Quick facts
Partners

2

Total number of IP practitioners

80

Languages

Turkish, English, German, French

Network memberships

European Communities Trade Mark Association (ECTA); International Trademark Association (INTA); Association Internationale pour la Protection de la Propriété Intellectuelle (AIPPI); International Federation of Intellectual Property Attorneys (FICPI); Patent ve Marka Vekilleri Derneği (PEM)

Key practice areas
Trade mark prosecution
Firm overview
Founded in Istanbul in 2003 by İhsan Karaca and Tolga Çaylak, Dış Patent has grown into one of Turkey’s leading full-service intellectual property consultancy firms, serving more than 15,000 clients across Turkey and internationally. With a team of 80 professionals, including trademark and patent attorneys, a dedicated litigation department, and business development specialists, the firm provides comprehensive IP services covering prosecution, portfolio management, opposition proceedings, litigation, customs enforcement, and anti-counterfeiting strategies.

The firm’s litigation department manages all aspects of IP disputes, including invalidation, infringement and cancellation actions, customs enforcement proceedings, anti-counterfeiting programmes, and the drafting of licence and other IP-related agreements. Unlike many Turkish IP firms, Dış Patent directly handles opposition proceedings before the Turkish Patent and Trademark Office, maintaining strategic oversight throughout disputes and strengthening clients’ positions should litigation become necessary.

Dış Patent’s patent department comprises patent attorneys and engineers with expertise in technical disciplines including chemistry, biology, software and mechatronics. The patent and litigation teams work collaboratively, particularly in the preparation of technical opinions for patent disputes.

An active member of INTA, ECTA, FICPI, AIPPI and PEM, Dış Patent combines local expertise with international reach, guided by its core values of professionalism, trust, quality, speed and innovation.
Client feedback

2025/2026
"Quick reactions."

"Reliable advice."

2024/2025
"Their professional advice is very clear, and they reply to our inquiries promptly. We like their enthusiastic and respectful attitudes."

"Reliable and highly skilled professionals. They focus on the most cost-effective option for our clients."

"Dis Patent’s expertise and specialization in intellectual property matters were evident from the initial consultation. They showed knowledge and instilled confidence by demonstrating efficiency in handling our matters. Meeting deadlines and delivering results within the expected timeframes showcased the professionalism and dedication by them. Communication is key in legal matters and Dis Patent’s team does a great job in both proactively providing updates and excellent service and responding quickly to queries. The transparent and clear communication made a strong and effective working relationship between our firms."

"We like the smooth exchange and communication with their attorneys, the responsiveness and the good advice."

"We selected Dis Patent for its proven track record and expertise in intellectual property law, ensuring a seamless and effective handling of our client's filing in Turkey. Their reputation for excellence and tailored solutions made them the clear choice for our specific needs. I appreciate Dis Patent's IP service for its unparalleled expertise and the proactive approach of its team. Their in-depth knowledge, attention to detail, and commitment to finding tailored solutions set them apart in providing comprehensive and effective intellectual property support."

"I appreciate working with Damla Duyan, head of litigation. She is sharp and hands-on. They proactively provide strategic advice, e.g. in our specific case it was helpful to learn how to best approach a Turkish company about a settlement."

Burcu Tuncel
"Involved in trademark prosecution and enforcement."

"She has a keen ability to analyse complex problems and develop effective solutions. Her critical thinking and problem-solving skills have proven valuable in addressing challenges and finding innovative approaches."

Damla Duyan
"She is sharp, very knowledgeable and hands-on."

2023/2024
"Very responsive, very professional and excellent value for cost."

"We value their thorough, fast and clear advice."

Key practice areas
  • Copyright
  • Copyright & related rights
  • Designs
  • Intellectual property
  • Intellectual property (contentious)
  • Intellectual property (prosecution)
  • IP transactions
  • Patent
  • Patent (contentious)
  • Patent (prosecution)
  • Trade mark
  • Trade mark (contentious)
  • Trade mark (prosecution)

See more

Sector expertise
  • Agriculture
  • Artificial intelligence
  • Automotive
  • Aviation
  • Biotechnology
  • Chemical
  • Computer technology & services
  • Consumer goods and services
  • Defence
  • E-commerce
  • Electrical
  • Electronics
  • Energy
  • Fashion & luxury goods
  • Financial services
  • Furniture
  • Gaming
  • Healthcare
  • ICT & software
  • Industrials
  • Instruments
  • Life sciences
  • Logistics
  • Manufacturing
  • Mechanical
  • Medical device
  • Mining
  • Natural resources
  • Oil and gas
  • Pharmaceuticals
  • Publishing
  • Real estate
  • Retail
  • Sports
  • Technology hardware
  • Tobacco
  • Tourism
  • Transport
  • Universities & research
  • Utilities
    See more
Address:
BAY Plaza, Girne, Elifli Sokak No:27 Kat:5
Maltepe, Istanbul, 34852
Turkey
Tel:+90 216 545 5700 Fax:info@dispatent.com.tr Email:Contact Us Web Address:https://www.dispatent.com.tr
2026 Edition
Trade mark prosecution
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Testimonials

2026

"Quick reactions."

"Reliable advice."

2025
"Proactive, good quality."

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