Llewellyn du Toit

Patent Attorney and Pharmacist

A patent attorney and qualified pharmacist at Von Seidels, Llewellyn specialises in Intellectual Property matters in the pharmaceutical and medical fields and his background sees him working with many of the firm’s international pharmaceutical clients.

About Llewellyn du Toit

Llewellyn du Toit is a patent attorney and partner at Von Seidels, he is a qualified pharmacist and holds a degree in law.

Llewellyn previously worked as an in-house Intellectual Property consultant with one of the leading technology transfer offices in South Africa.

He specialises in both local and international patent searches, legal opinions for clients, patent specification drafting and licensing agreements. He has a keen interest in pharmaceutical and medical patents, as well as the commercialisation of Intellectual Property.

In addition, Llewellyn is experienced in all aspects of Plant Breeders’ Rights.

Focus areas

  • Patent searches
  • Patent specification drafting
  • Patent prosecution
  • Patent litigation
  • Pharmaceutical patent matters


  • North-West University, BPharm (2004)
  • Stellenbosch University, LLB (2009)
  • South African Institute of Intellectual Property Law, Qualified Patent Attorney (2016)

Affiliations and accolades

  • Attorney of the High Court, South Africa
  • Patent Attorney, South Africa
  • Member, South African Research and Innovation Management (SARIMA)
  • Fellow, South African Institute of Intellectual Property Law (SAIIPL)
  • Member, Licensing Executives Society International (LES)
  • Participant, Asian Patent Attorneys Association (APAA)
  • Recommended Individual, IAM Patent 1000 (2021 - 2022)

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.

Cannabis Expo 2022

We are looking forward to learning all about the latest developments in this very exciting and innovative industry.

2021 IP Law Lecture

Von Seidels is delighted to sponsor Stellenbosch University’s 2021 annual IP law public lecture today. Bastiaan Koster, Erik van der Vyver