(206) 696.6694

Strategic Advice & Counsel

Intellectual Property Protection & Litigation
Contracts & Commercial Disputes


University of Washington School of Law, J.D., 1994

Stanford University, B.A.


Hon. Betty Binns Fletcher, U.S. Court of Appeals
   for the Ninth Circuit, 1994-1995


Intellectual Ventures, 2008-2018

Blue Frog Media, 2006-2007

AT&T Wireless, 1997-2005

Preston Gates & Ellis, 1995-1997

Lonnie Rosenwald has deep and broad experience in innovations that are reshaping the technology industry, law, and investments. She has developed and led high-performing legal teams that deliver results in both Fortune 50 and start-up environments. 


Before joining Yarmuth, she served as vice president and lead counsel for patent funds that create and commercialize inventions at Intellectual Ventures, the pioneer in patent fund management. While at Intellectual Ventures, she founded legal structures to enable the commercialization of patents, and helped launch numerous startups and investment funds, including a fourth generation nuclear power company, several communications companies based on metamaterials technology, a fund that collaborates with the Gates Foundation to develop products for the developing world, and a scientific lab. She was formerly chief technology counsel and vice president for corporate development at AT&T Wireless, and an intellectual property attorney at K&L Gates, where she supported Microsoft and other technologies clients. She attended the University of Washington School of Law, where she was editor-in-chief of the Washington Law Review. Lonnie was a clerk for the Hon. Betty Fletcher of the U.S. Court of Appeals for the Ninth Circuit. She has a B.A. in history from Stanford University.


Lonnie serves on the advisory board of SocialPay, a fintech start-up, and is a Venture Partner with Spike Ventures, which invests in companies founded by Stanford alumni.


She is active in the Intellectual Property Owners association (IPO), serving on the Women in IP, Unconscious Bias and Women Inventors committees. She is Chair of the Board of Trustees of Cornish College of the Arts, has chaired the Alumni Association at the University of Washington School of Law, and currently serves on the school's 2016-20 Campaign and Advancement Committees. She has been an active fundraiser for the Center for Children and Youth Justice. Lonnie is passionate about inventions and ideas, as well as educating and mentoring young adults and new professionals.

1420 Fifth Avenue, Suite 1400  |  Seattle, Washington 98101  |  206.516.3800  |  info@yarmuth.com

© 2019 Yarmuth LLP