
Finnegan, Henderson, Farabow, Garrett & Dunner LLP is a market leader in patent prosecution, representing global clients before courts and regulatory agencies. Co-head Aaron Capron, based in Palo Alto, advises on patent portfolio strategy, counseling, product clearances, and post-grant matters across technologies such as AI, semiconductors, quantum computing, and video coding. Co-head Cory Bell, in Boston, focuses on post-grant matters, prosecution management, counseling, and litigation for high-tech companies in hardware, software, and robotics. Co-head James Barney, in Washington DC, has handled complex matters in the automotive and energy sectors. Co-head Erika Harmon Arner, splitting her time between Reston and DC, specializes in patent office trials, client counseling, and litigation in electronic technology and software, representing parties in PTAB trials. Also in DC is Adriana Burgy, who advises on single-patent and multi-patent matters, and provides ongoing portfolio strategy guidance. Additionally, in the DC office, Mark Feldstein, Joshua Goldberg, Karthik Kumar, Gerson S. Panitch and Aaron Parker are key to the patents team. In Boston, Jeffrey Jacobstein and Nishla Keiser are key contacts. Carlos E. Duarte-Guevara, in DC, is also recommended.
Legal 500 Editorial commentary
Key clients
- Accutar Biotechnology Inc.
- actnano, Inc.
- Advanced Drainage Systems, Inc.
- Alibaba Group Holding Limited
- American Isostatic Press, Inc.
- Archer Aviation, Inc.
- ASML Netherlands B.V.
- AstraZeneca
- Crinetics Pharmaceuticals
- Coupang Corp.
- Ecovyst Catalyst Technologies
- Eisai Co, Ltd.
Work highlights
Advising Alibaba on patent drafting and prosecution in cutting edge technologies.
Representing Toyota in several IPRs at the PTAB, challenging the validity of patents asserted in related proceedings, in addition to ex parte reexaminations.
Serving as lead IP counsel to Eisai and its US research subsidiaries, handling high-stakes drafting, prosecuting, portfolio management, and strategic advising, including patentability, freedom-to-operate, and patent term extension considerations on worldwide patent portfolios covering several different and commercially important drugs.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Carlos E. Duarte-Guevara
Practice head
Aaron Capron; Cory Bell; James Barney; Erika Harmon Arner
Other key lawyers
Adriana Burgy; Mark Feldstein; Joshua Goldberg; Karthik Kumar; Gerson S. Panitch; Aaron Parker; Jeffrey Jacobstein; Nishla Keiser; Carlos E. Duarte-Guevara


