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Mari Korsten

Mari Korsten

Partner & Dutch and European patent attorney
I am often involved in patent litigation cases at the courts in the Netherlands and Belgium as well as in opposition proceedings at the European Patent Office. I have assisted various companies and law firms in mergers and acquisitions.


  • Chemistry
  • Pharmacy
  • Food

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