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About Allard van Duijn

Allard is an associate (advocaat) in the IP/IT team in our firm's Amsterdam office. He has experience in litigating complex patent disputes involving a wide range of technologies, including pharmaceuticals, medical devices, telecommunications, semiconductors and software. Furthermore, he has experience in advising clients in various SEP and telecommunications matters, including the technical and legal analysis of allegations of standard-essentiality as well as antitrust (FRAND) defences.

Recent work

Since joining Freshfields, Allard has been involved in the following matters (public knowledge):

  • Xiaomi: Proceedings against Panasonic before the Unified Patent Court (UPC)
  • Novartis: Patent nullity proceedings about Lucentis®
  • Novartis: Patent infringement proceedings against Pharmathen about a cancer drug
  • Novartis: Patent nullity proceedings about Entresto®
  • Moderna: Patent infringement proceedings against Pfizer and BioNTech over Covid-19 vaccine patents
  • Grünenthal: Patent infringement proceedings against Teva Pharmaceuticals over patent exclusivity for Nebido®
  • Anheuser-Busch InBev: Patent litigation about a draft beer dispenser (PerfectDraft)
  • Representing a major silicon valley technology company in several patent litigations

Prior to joining Freshfields, Allard represented the following clients (public knowledge):

  • Viatris: Patent litigation against Novartis about second medical use patent on oral fingolimod 0,5 mg (Gilenya®)
  • Hewlett Packard Enterprise: Proceedings against a large European distributor of professional computer hardware
  • Advance Medical Designs: Patent litigation against Corbin Clinical Resources about a medical device for prostate biopsy
  • Huisman Equipment: Preliminary relief proceedings against Mammoet about unlawful accusations of patent infringement in the press


Professional qualifications

  • Attorney-at-law (advocaat) - Netherlands Bar
  • Representative before the Unified Patent Court (UPC)


  • Leiden University, LLM

Other professional experience

  • Judicial clerk (buitengriffier) at the Court of Appeal of The Hague
  • Judicial clerk (buitengriffier) at the District Court Midden-Nederland