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Mari Korsten

Mari Korsten

Partner & Dutch and European patent attorney
I have worked at several international (lawyers) offices and in-house at Novartis in Switzerland. I am often involved in patent litigation cases at the courts in the Netherlands and Belgium. In addition, I regularly act in opposition proceedings at the European Patent Office and I help life-science companies to prepare and implement their patent strategy.


  • Chemistry
  • Pharma
  • Food
  • Medicines

I joined NLO as a partner in 2011. Previously, I worked as a Dutch and European patent attorney at Novartis Pharma in Switzerland, where I was responsible for the specialty products portfolio and litigation. After returning to the Netherlands, I joined Bird & Bird in The Hague where I handled oppositions and court proceedings on behalf of pharmaceutical and chemical clients.

An extremely experienced patent attorney”, Mari Korsten is “excellent prosecutor and great in litigation, too”. A former in-house counsel for Novartis, he ploughs his experience into contentious and non-contentious matters in the life sciences and biotech fields.
IAM Patent 1000 - edition 2018


  • MSc in industrial microbiology and product development, Wageningen University
  • Law degree (LLM), Radboud University in Nijmegen