Williams & Connolly

District of Columbia

680 Maine Avenue SW
Washington, D.C.
District of Columbia

Tel:+1 202 434 5000
Fax:+1 202 434 5029
Web Address:

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Key contacts:

Partner: David I. Berl
Partner: Jessamyn S. Berniker

Quick facts:

Established : 1967

Williams & Connolly’s reputation for handling “bet-the-company” civil litigation at the trial and appellate levels applies equally to the firm’s thriving Intellectual Property Practice. Major corporations including Google, AstraZeneca, Dropbox, Roche/Genentech, Samsung, Pfizer, Intel, Eli Lilly, and many others place their trust in Williams & Connolly litigators to handle major intellectual property matters, particularly in patent litigation and related licensing disputes.

About 50 Williams & Connolly attorneys devote a substantial portion of their practice to patent cases, including fourteen former clerks of the United States Court of Appeals for the Federal Circuit. Many of our lawyers practicing in this area have science degrees, and thirteen have been admitted to practice before the United States Patent and Trademark Office.

A major part of Williams & Connolly’s patent litigation practice is representing pharmaceutical companies in Hatch-Waxman pharmaceutical patent litigation.

Williams & Connolly has handled over 100 IPR proceedings, including numerous concurrent with district court proceedings in Hatch-Waxman cases.


Last updated 9th February 2020

Practice Areas: Life sciences, Patent contentious, Patent litigation, Patent office proceedings, PTAB litigation

Sector Expertise: Biotechnology, Electronics, Technology hardware, Pharmaceutical, Medical device, Life sciences

The firm is a member of the Intellectual Property Owners Association (IPO).

Diversity & Inclusion

Williams & Connolly recognizes diversity and inclusion as core values; exceptional advocates are not cut from a single—or predictable—cloth. We work to recruit individuals from diverse backgrounds and provide them with the opportunities and resources necessary to thrive.

Our Diversity & Inclusion Committee, chaired by Chief Diversity Partner Malachi Jones, develops and monitors initiatives to achieve our goals, and the entire firm implements them. Our commitment to diversity and inclusion makes us better able to serve our clients and community.