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Basil "Bill" J. Lewris
+1 202 408 4089

901 New York Avenue, NW
Washington, DC 20001-4413

+1 202 408 4000
Fax +1 202 408 4400

Bar and Court Admissions

  • District of Columbia
  • Virginia
  • U.S. Court of Appeals, Federal Circuit
  • U.S. Court of Federal Claims
  • U.S. Supreme Court
  • U.S. Patent and Trademark Office


  • George Washington University, National Law Center
    LL.M., Patent and Trade Regulation
  • George Washington University, National Law Center
    J.D., with high honors
  • City College of the City University of New York
    B.S., Chemical Engineering, cum laude

Judicial Clerkships

    U.S. Court of Customs and Patent Appeals

Basil "Bill" J. Lewris


Bill Lewris has an extensive litigation practice, including numerous district court and U.S. International Trade Commission (ITC) litigations and appeals at the U.S. Court of Appeals for the Federal Circuit. He has experience as lead counsel in large patent litigations from inception through trial and appeal to the Federal Circuit where he has argued and won numerous appeals.

Mr. Lewris has represented clients in numerous industries, including pharmaceuticals, biotechnology, medical devices, chemicals, and cosmetics. He has represented branded pharmaceutical companies in over thirty
Hatch-Waxman cases.


  • Represented Grünenthal GmbH in multiple suits involving Nucynta®, with injunctions issued on behalf of Grünenthal GmbH after trial.
  • Represented Grünenthal GmbH in multiple suits involving OxyContin® and Opana®.
  • Represented Wyeth in suits involving the multibillion dollar antidepressant, Effexor XR®. Obtained multiple favorable claim construction rulings and summary judgment of direct, induced, and contributory infringement in Wyeth v. Sandoz.  
  • Represented Immunex against ZymoGenetics in suit involving recombinant DNA technology (Enbrel®).
  • Defended Organon Teknika against Hoffmann-La Roche in ITC and district court actions involving nucleic acid amplification technology used for HIV detection, with Organon being permitted to continue the sale of its product based on a settlement agreement.
  • Represented Organon, Inc. in a suit involving neuromuscular blocking agents. An injunction was issued on behalf of Organon as part of a settlement.
  • Represented L'Oréal against Revlon, with an injunction on behalf of L'Oréal issuing based on a settlement agreement.
  • Defended Hoechst AG in an ITC investigation involving antibiotics, with Hoechst prevailing in the ITC investigation and on appeal.
  • Represented Organon Teknika against Becton Dickinson in a suit involving blood analysis technology, with Becton Dickinson taking a license based on a settlement agreement.
  • Represented Goodyear in a case involving carbon brakes for the F-15, with Goodyear prevailing in the district court.
  • Served as a law clerk to the Honorable Donald E. Lane of the U.S. Court of Customs and Patent Appeals, which is now the U.S. Court of Appeals for the Federal Circuit.
  • Former examiner at the U.S. Patent and Trademark Office (USPTO) in the chemical fields.

Professional Recognition

  • Recognized as an "IP Star" in Washington, D.C. by Managing Intellectual Property, 2013-2017.
  • Selected by his peers for inclusion in The Best Lawyers in America® since 2005; and for intellectual property litigation and patent litigation, 2011-2017.
  • Listed in The Washington Post Magazine as a "Top Lawyer," 2009-2012.
  • AV® rated by Martindale-Hubbell.
  • Order of the Coif.
  • Member of Delta Theta Phi, Tau Beta Pi, and Omega Chi Epsilon.

Professional Activities

  • American Bar Association
  • American Intellectual Property Law Association
  • Association of Trial Lawyers of America
  • The District of Columbia Bar
  • The Federal Circuit Bar Association
  • Virginia State Bar Association

Select Publications

  • Coauthor. "Follow-On-Biologics Framework: Overview and Comparisons," Drug Discovery & Development, Sept. 1, 2011.
  • Coauthor. "Anticipating and Preparing for a Paragraph IV Challenge," American Conference Institutes 3rd Annual Paragraph IV Disputes, 2009.
  • Coauthor. "Patent Law Perspectives," Matthew Bender, 1984-1988.
  • "A Comprehensive Guide to Patent Litigation in the United States, Maximizing Recovery . . . Minimizing Loss," EuroForum, 1996.
  • Coauthor. "Securing Evidence in Patent Litigation in the United States," International Bar Association, 1987.
  • Coauthor. "Federal Circuit Patents and Statutory Changes," Patent Resources Group, 1984-1985.
  • Coauthor. "Federal Circuit Patent Law," Patent Resources Group, 1984.
  • Coauthor. "Federal Circuit Patent Law Update," Patent Resources Group, 1983.