Williams & Connolly LLP’s practice is renowned for its strong record in patent infringement litigation, representing some of the world’s biggest companies in pharmaceuticals and high-tech. The firm is particularly active in Washington DC, where it routinely serves in appeals before the Federal Circuit and is highly regarded for its work in the life sciences segment. The practice group is led by tree prominent practitioners based in Washington DC: David Berl, Jessamyn Berniker and Dov Grossman. Co-chair David Berl stands out for his extensive experience in both IPR proceedings before the PTO and trial and appellate patent matters. Co-chair Jessamyn Berniker is a rising star in patent and licensing disputes in the life sciences segment; she also serves as lead counsel for industry leaders like AstraZeneca. Dov Grossman is a go-to trial attorney for biopharma disputes.
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Accolades

Client satisfaction: Lawyer & team quality
Client satisfaction: Billing & efficiency

Testimonials

Collated independently by Legal 500 research team.

  • 'Unparalleled knowledge and experience regarding patent law and its intersection with patent litigation.'
  • 'Extremely responsive and extremely good at anticipating issues.'

Key clients

  • Regeneron Pharmaceuticals
  • Pfizer
  • Genevant Sciences
  • Bayer CropScience
  • BeOne (f/k/a BeiGene)
  • AstraZeneca
  • Intra-Cellular Therapies, Inc.
  • Danaher Corporation
  • Samsung
  • Google LLC
  • Bayer AG
  • Orion Corporation

Work highlights

Secured a first-of-its-kind trial victory for Regeneron in its BPCIA litigation concerning Regeneron’s vision-saving biologic product, Eylea®, the first BPCIA case tried to judgment in approximately five years.
Represented Pfizer in patent infringement litigation filed by Moderna alleging that Pfizer’s COVID-19 vaccine COMIRNATY® infringes Moderna’s patents covering its mRNA platform.
Represented Google and YouTube in patent infringement litigation related to YouTube’s Content ID system.

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Practice head

David Berl; Jessamyn Berniker; Dov Grossman