The Legal 500

Twitter Logo Youtube Circle Icon LinkedIn Icon

Arnold & Porter

Work +1 202 942 5000
Fax +1 202 942 5999

David Marsh

Arnold & Porter


United States: Industry focus

Healthcare: life sciences

Within: Healthcare: life sciences

Arnold & Porter’s ‘go-to’ department often acts for high-profile pharmaceutical companies on all aspects of life sciences matters, including transactions, litigation and regulatory issues. In New York, the well-regarded Anand Agneshwar has been leading advice to Bristol-Myers Squibb on various product liability matters regarding the company’s drug Plavix. Jeffrey Handwerker continued to represent the Pharmaceutical Research and Manufacturers of America in various contentious and non-contentious matters, including issues arising from potential changes to legislation regarding pricing. IP specialist David Marsh has been advising Shumway Capital on both domestic and international patent prosecution and procurement matters. William Hoffman and Pamela Yates have been defending Bayer in a product liability dispute regarding the client’s Xarelto medicine. Co-chaired by Daniel Kracov and Allison Shuren, the department includes Ariane Horn, Mahnu Davar and Matthew Wolf, and was strengthened by the arrival of Steve Benz from Eli Lilly. All partners are based in Washington DC unless otherwise stated.

[back to top]

United States: Intellectual property

Patent: prosecution (including reexamination and post-grant proceedings)

Within: Patent: prosecution (including reexamination and post-grant proceedings)

Arnold & Porter’s main focus is the life sciences sector where the team not only undertakes a significant amount of PTAB work, but also excels in patent application and portfolio management mandates. Recent examples of PTAB matters include the successful representation of Hologic in two IPRS filed by Minerva to challenge a patent on uterine ablation devices and, as part of a wider litigation, the defence of Boston Scientific against IPRs filed by Edwards Lifesciences relating to replacement heart valves. Long-standing client Monsanto profits from the team’s expertise in plant patents, in particular in transgenic and traditionally bred plants. Clients include Biogen-Idec, Samsung and Google. David Marsh and PTAB specialist Matthew Wolf in Washington DC shoulder the majority of high-profile work. Ginger Dreger left.

[back to top]

Back to index

Legal Developments by:
Arnold & Porter

  • The role of arbitrators in EU antitrust law

    In May 2014, it will be ten years since Regulation No 1/2003 entered into force. When the legislator of the European Union adopted this Regulation on 16 December 2002, its main objective was to decentralise the enforcement of the two main provisions of EU antitrust law, Articles 81 and 82 of the Treaty establishing the European Community (now Articles 101 and 102 of the Treaty on the Functioning of the European Union (TFEU)). Where do the arbitrators fit in this picture?

    - Arnold & Porter (UK) LLP

Legal Developments worldwide

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to