Bastiaan Koster

Patent Attorney, Trademark Practitioner

An approachable legal leader, consummate in a broad range of Intellectual Property matters.

Bastiaan Koster’s broad understanding of the South African and international IP landscapes sees him involved in both the patent and trade mark departments at Von Seidels.

About Bastiaan Koster

Bastiaan Koster is the partner responsible for the day-to-day management of Von Seidels. In addition, he has a keen interest in the personal development of the Von Seidels team and plays a crucial role in ensuring optimal staff well-being and performance.

Although most of Bastiaan’s time these days focuses on management issues, he remains involved in high level advice on IP strategy for some of the firm’s clients. He has been in the IP profession for more than 35 years and is an accomplished patent attorney and trade mark practitioner.

Bastiaan’s formal training is in electronic engineering (pre-law). As past president of the South African Institute of Intellectual Property Law (SAIIPL) and past president of the International Federation of Intellectual Property Attorneys (FICPI), he brings significant experience to the firm over a broad range of issues relevant to an IP firm and ensures that clients receive commercially focused advice.

Best Lawyers recognises Bastiaan as a leading lawyer in IP law (2014 - 2024).

Managing Intellectual Property recognises Bastiaan as an IP Star in patents and trade marks (2013 - 2023).

IAM Patent 1000 features Bastiaan as a Recommended Individual (2013 - 2023).

Who’s Who Legal features Bastiaan Koster as a patent expert (2014 - 2023).

Focus areas

  • Patent and Trade Mark prosecution
  • Registered designs
  • Copyright
  • Portfolio management
  • Licensing
  • Plant Breeders' Rights


  • University of Johannesburg, BEng Electronic Engineering (1983)
  • University of South Africa, BProc (1989)
  • South African Institute of Intellectual Property Law, Qualified Trade Mark Practitioner (2003)

Affiliations and accolades

  • Attorney of the High Court, South Africa
  • Patent Attorney, South Africa
  • Fellow, past President, South African Institute of Intellectual Property Law (SAIIPL)
  • Member, past President, International Federation of Intellectual Property Attorneys (FICPI)

Featured in

Von Seidels Awarded

“Patent Firm of the Year – South Africa” recognition during Managing Intellectual Property’s awards ceremony held last night in London.

Von Seidels is in Tier 1

We are excited to share that our firm has moved up to Tier 1 for trade marks in IP STARS (Managing IP) 2022 firm rankings for South Africa.

Chambers 2022

Chambers and Partners recognises Von Seidels and 7 of our partners in the 2022 edition of the Global Guide. Our firm retained our ranking

Best Lawyers 2022

Congratulations to our five partners recognised by Best Lawyers® as leaders in Intellectual Property Law in South Africa.