Aaron Stiefel

IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Silver - Individuals: litigation

Arnold & Porter is the destination for many of the world’s top life sciences and technology companies. More than half of its attorneys hold degrees in engineering or scientific disciplines, and their expertise is put to good use in many high-stakes litigations. Based in the New York office are Daniel DiNapoli, Aaron Stiefel and Daniel Reisner. DiNapoli and Stiefel are both sterling life sciences litigators who work closely together to handle their clients’ most complex matters. The pair are currently representing Pfizer in numerous Hatch-Waxman disputes. Reisner supports a mix of high-technology and life sciences players in patent litigation. In the past year, he has been busy advising Sanofi and Regeneron Pharmaceuticals regarding a dispute against Amgen.

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