Molly Terwilliger

Molly Terwilliger is a trial lawyer whose practice focuses on intellectual property, employment, and other complex commercial litigation.  Having clerked for the Honorable Marsha J. Pechman of the United States District Court for the Western District of Washington, Molly has a special affinity for the federal courts, but has represented clients before other state and federal trial and appellate courts, mediators, and arbitrators.  Molly has experience with all aspects of litigation, including the collection and production of electronic documents.  

Intellectual Property Litigation:

  • Represented corporation against claims of copyright, trademark, and trade dress infringement, as well as unfair competition, in successful bench trial in the Western District of Washington;
  • Successfully defended against multiple summary judgment motions on claims for copyright infringement, trade secret misappropriation, and breach of contract on behalf of corporation in action against former employees in the Northern District of California;
  • Served as local counsel, offering local insight and strategic advice, in numerous patent cases pending in the United States District Court for the Western District of Washington;
  • Obtained dismissal of trademark infringement litigation on jurisdictional grounds on behalf of corporation in Western District of Washington;
  • Assisted numerous corporations asserting and defending against claims of trademark and copyright infringement, including domain-name disputes.


  • Obtained favorable jury verdict in favor of municipal employer on claims for wrongful termination in violation of public policy for engaging in protected union activity in King County Superior Court;
  • Obtained summary judgment in favor of employer on sexual harassment claims filed in the United States District Court for the Eastern District of Washington;
  • Obtained summary judgment in favor of CEO and employer on claims for breach of severance agreement and willful nonpayment of wages in King County Superior Court;
  • Represented employers in defense of wage-and-hour class actions brought in state and federal court;
  • Obtained summary judgment in favor of employer on claims of age and disability discrimination filed in King County Superior Court.


  • Obtained summary judgment in favor of corporation on claims brought under state and federal antitrust laws;
  • Represented local corporation against the United States’ claims for cost recovery under CERCLA in successful bench trial in the Western District of Washington;
  • Pro Bono representation of clients in federal litigation involving constitutional challenges to rules enacted by the Washington State Board of Pharmacy in the Western District of Washington and Ninth Circuit Court of Appeals;
  • Submitted briefs on behalf of amicus curiae Legal Voice and the ACLU of Washington in matters involving the termination of victims of domestic violence’s parental rights.

Publications/speaking engagements:

  • Author and Presenter, “More Than You Want (or Need) to Know About The December 2015 Revisions to the Federal Rules of Civil Procedure,” (January 2016);
  • Author, “The Right to Refuse vs. Patient Health & Safety,” King County Bar Association Bar Bulletin (June 2009);
  • Contributor, “Basics of Patent Infringement Litigation,” The Antitrust Counterattack in Patent Infringement Litigation (2008 ABA publication)
  • Speaker, Trade Secrets Litigation & Transactions CLE, “Trial Strategies for Plaintiffs and Defendants” (November 2007);
  • Speaker, 2007 Washington Women Lawyers Leadership Symposium, “The Strategy and Art of Taking and Defending Depositions” (September 2007).

Molly has been recognized as a Super Lawyer by Washington Law & Politics Magazine, 2014-2016. She is the Past President and current member of the Board of Directors for Legal Voice (fka Northwest Women’s Law Center).  She also serves on the ACLU of Washington Foundation Legal Committee and the Western District of Washington Federal Bar Association Local Rules Committee. 



University of Wisconsin Law School, J.D., 1998, cum laude, Order of the Coif

Northwestern University, B.A., 1994 with Departmental Honors in History

Professional Experience

Yarmuth Wilsdon PLLC, 2016 – present

Summit Law Group, PLLC, 2009-2016

Heller Ehrman LLP, 2001-2008

Law Clerk to United States District Court Judge Marsha J. Pechman, 1999-2001

Law Clerk to Chief Justice Barbara Durham, Washington State Supreme Court, 1998-1999

Bar Admissions


Wisconsin (inactive)