Williams & Connolly LLP

Williams & Connolly’s reputation for handling ‘bet-the-company’ civil litigation at the trial and appellate levels applies equally to the firm’s thriving IP practice. Major corporations, including Google, AstraZeneca, Dropbox, Roche/Genentech, Samsung, Pfizer, Intel and Eli Lilly, place their trust in Williams & Connolly litigators to handle major IP 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 17 former clerks of the US Court of Appeals for the Federal Circuit. Many of our lawyers practising in this area have science degrees, and 13 have been admitted to practise before the US 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 inter partes review proceedings, including numerous concurrent with district court proceedings in Hatch-Waxman cases.

Representative areas of concentration are outlined below.


A major part of Williams & Connolly’s patent litigation practice is representing brand-name pharmaceutical companies in Hatch-Waxman and pharmaceutical patent litigation brought under the Biologics Price Competition and Innovation Act against competitors seeking to sell generic and biosimilar versions of the brand companies’ drugs. Over the years, the firm has achieved significant successes for many companies in these disputes and others involving a diverse array of highly successful drugs, prevailing numerous times at trial and in the Federal Circuit.

Electronics and software

The firm handles major patent and licensing matters in the electronics and software fields. The firm routinely serves as counsel in trial courts and the Federal Circuit, as well as in international arbitrations, on behalf of major technology firms including Samsung, Google, Dropbox, Acer, ASUS, Motorola, AOL and Intel.

Medical and mechanical devices

The firm has handled or is handling a number of significant patent and licence disputes concerning a wide variety of devices, including surgical instruments for cancer diagnosis and treatment, implantable defibrillators, marine seismic survey technology, laser hair removal equipment and biosensors for blood testing.

Inter partes review/patent office disputes

The firm has handled close to 100 inter partes review proceedings before the US Patent and Trademark Office, and our lawyers currently serve as lead counsel in a number of inter partes reviews for both patent owners and petitioners. Many of the inter partes reviews handled by the firm involve parallel district court litigation. The firm has served as counsel in other patent office proceedings of strategic importance to the firm’s clients, including interferences.

Other proceedings

William & Connolly’s patent experience is also brought to bear in other contexts. For example, the firm has been lead counsel in multiple antitrust matters involving allegations of unlawful settlements of Hatch-Waxman litigation, including in the first-class action antitrust trial involving claims for ‘pay-for-delay’ after the Supreme Court’s decision in FTC v Actavis. Williams & Connolly also has been retained on numerous occasions by other major law firms accused of malpractice resulting from patent litigation or prosecution.

In the past year, the firm received the award for Hatch-Waxman Litigation Firm of the Year – Branded from LMG Life Sciences. In June 2020, the firm was recognised among the top 10 leading practices nationally and among the top four practices in Washington DC by IAM Patent 1000 – The World’s Leading Patent Practitioners. And in May 2020, Managing IP ranked the patent litigation practice group nationally in the bio/life sciences and patent contentious categories. The American Lawyer also named Williams & Connolly among four finalists for Intellectual Property Department of the Year.

Contact details

Williams & Connolly LLP
725 12th Street NW
Washington DC 20005
United States

Professional contacts

Sample client list

  • AstraZeneca
  • Dropbox
  • Eli Lilly
  • Google
  • Intel
  • Pfizer
  • Roche/Genentech
  • Samsung

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