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Delfina Homen

Special Counsel
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My goal when working with clients is to make the experience a collaborative one, keeping them up-to-date and garnering their valuable input while taking the pressure of the litigation grind off their shoulders. I think that communication and clarity are key, and strive to bring those qualities to every matter that I work on. Quotation mark
Delfina Homen
Delfina Homen

About Delfina

Delfina Homen is an intellectual property litigator and has represented clients from diverse industries in lawsuits involving patent, trademark, and copyright infringement, trade secrets, unfair competition, and tort and contract disputes. She also advises and represents clients in trademark opposition and cancellation proceedings before the Trademark Trial and Appeal Board and patent inter partes review proceedings before the Patent Trial and Appeal Board.

Delfina understands that not every matter is destined for litigation. She partners with clients to obtain favorable resolutions for each unique situation. Delfina has successfully represented clients in private and court-ordered mediations. She also has experience drafting, reviewing, and negotiating trademark usage agreements, litigation settlement agreements, and licensing agreements.

Outside of litigation, Delfina is experienced in IP procurement and enforcement. She has worked on numerous trademark and patent applications, assisting clients in obtaining the IP protection they need to grow and support their business strategies. Delfina has also organized and run large trademark, patent, and copyright enforcement programs for national companies.

Before law school, Delfina worked as an undergrad research assistant at Oregon State University and then after college as a research assistant at Shriner’s Hospital for Children and Oregon Health & Science University.



  • J.D., Lewis & Clark Law School, magna cum laude, 2010
    • Form & Style Editor, Environmental Law
  • B.S., Oregon State University, magna cum laude, biology, with minors in botany and chemistry, 2004

Bar Admissions

  • U.S. Patent and Trademark Office, 2011
  • Oregon, 2010

Court Admissions

  • U.S. Court of Appeals for the Third Circuit, 2021
  • U.S. Court of Appeals, Federal Circuit, 2018
  • U.S. District Court, District of Oregon, 2011


Professional Plus
  • Oregon State Bar, member


  • Selected for inclusion as a Washington Super Lawyer—Rising Star, 2016

Insights from Delfina

  • Stevens, S.L., T.M. Ciesielski, B.J. Marsh, T. Yang, D.S. Homen, J.L. Boule, N.S. Lessov, R.P. Simon, and M.P. Stenzel-Poore (2008). Toll-like receptor 9: a new target of ischemic preconditioning in the brain. Journal Cerebral Blood Flow and Metabolism 28(5): 1040–1047.
  • Longnecker, K., D.S. Homen, E.B. Sherr, and B.F. Sherr. (2006). Similar community structure of biosynthetically active prokaryotes across a range of ecosystem trophic states. Aquatic Microbial Ecology 42(3): 265–276.

Outside the Office

When she’s not in the office, Delfina enjoys taking barre classes, wine tasting, knitting, antiquing, and traveling.