Arjan is a patent specialist with over 15 years of experience in advising and litigating on behalf of clients in various industries ranging from pharma and life sciences to mechanical engineering.

Arjan's experience

  • Advised Arkance Systems Netherlands B.V., a Dutch software provider, on potential copyright infringement and unfair competition issues concerning icons used in their InfraCAD software, including guidance on software-related intellectual property infringement and slaafse nabootsing under Dutch law.

  • Advised and litigated on behalf of Teva Pharmaceutical Industries, a leading global pharmaceutical company, on regulatory and patent matters concerning the launch of dimethyl fumarate in the Netherlands.

  • Advised and prepared Accord for PI litigation upon execution of a launch-at-risk strategy in the Netherlands for a generic antifungal product protecting vulnerable hospitalized patient populations in the Netherlands.

  • Advised a government agency in the water sanitation space on navigating a third party’s patent portfolio.

  • Represented Geberit International AG, a leading sanitary technology company, in NL PI proceedings against an infringer selling knock-off actuator plates; constituting an infringement of Geberit’s patent- and design rights.

  • Represented Accord, a leading pharmaceutical company, in multiple revocation actions against Roche in relation to a biosimilar product of blockbuster products containing trastuzumab as the active pharmaceutical ingredient.

Credentials

  • 2025
    Made Partner in Pinsent Masons
  • 2023
    Joined Pinsent Masons
  • 2019
    Sr. Legal Counsel Danone Nutricia Research
  • 2016
    MBA IESE Business School & NYU
  • 2016
    Started Reijns-IP Consulting & Law
  • 2009
    Vondst Advocaten
  • 2007
    Joined Hogan Lovells
  • 2007
    Utrecht University - LLM
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Out-Law / Insight by Arjan Reijns

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