Rinske du Plessis

Trademark Attorney

A trade mark attorney with a background in general court practice.

About Rinske du Plessis

Rinske is a South African attorney and trade mark practitioner. She is focused on the searching and filing of trade marks, as well as trade mark oppositions, trade mark and copyright infringement matters, passing-off, anti-counterfeiting and domain name disputes. She focuses on both prosecution and litigation matters in South Africa and throughout Africa.

Rinske obtained degrees in science and law from the University of Stellenbosch, choosing intellectual property law as a final-year elective. She has gained experience working in teams dealing with complex and contentious matters, both in prosecution and litigation.

Before joining Von Seidels, Rinske gained a year’s experience in general litigation and court practice.

Focus areas

  • Trade Mark prosecution, South Africa and Africa
  • Trade mark assignment and other recordals
  • Trade Mark portfolio management
  • Trade Mark searches
  • Copyright litigation and advice
  • Trade Mark Litigation, South Africa and Africa
  • Advertising complaints
  • Domain name disputes
  • Civil and criminal anti-counterfeit proceedings and complaints


  • University of Stellenbosch, BSc in Chemistry and Polymer Science (2013)
  • University of Stellenbosch, LLB (2016)
  • South African Institute of Intellectual Property Law, Qualified Trade Mark Practitioner (2020)

Affiliations and accolades

  • Attorney of the High Court, South Africa
  • Fellow, South African Institute of Intellectual Property Law (SAIIPL)

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.

World IP Day 2022

World IP Day today focuses on young people and innovation. At Von Seidels we celebrate young inventors, brand owners, IP professionals and…