Theresa H. Nguyen

Summary — Theresa H. Nguyen ("Reese" Nguyen), Perkins Coie (Ashurst Perkins Coie), Seattle

Theresa H. Nguyen is a Seattle-based patent litigator and appellate lawyer in Perkins Coie's Patent Litigation group (the firm now operates as Ashurst Perkins Coie following the Ashurst combination). Per her firm bio, she focuses on high-stakes commercial disputes and patent litigation/appeals, with defense-side work for technology companies in disputes involving telecommunications networks and devices, location/mapping software, graphical user interfaces, VR/AR, data compression, video encryption, and semiconductors. Her tracked docket is consistent with that description: all three tracked appearances are defendant-side representations of operating companies — Amazon (Flexiworld Technologies, Inc. v. Amazon.com, Inc., W.D. Wash. 2:21-cv-01055, as local counsel) and Microsoft (Peter Henrik Pedersen v. Microsoft Corp., W.D. Tex. before Judge Albright, plus an untracked appearance for Microsoft in In re Koninklijke Philips Patent Litigation, N.D. Cal., an SEP/FRAND-related matter). None of her tracked appearances are plaintiff-side; her practice is squarely defense of accused technology companies against patent plaintiffs, including NPEs such as Flexiworld.

She is counsel (some directories list her as partner) at Perkins Coie in Seattle, where she has practiced since roughly 2018; she previously was an associate at Keker Van Nest & Peters in San Francisco (2012–2015) and Latham & Watkins in San Diego (2015–2017), with a brief stint as a volunteer deputy district attorney. Her firm bio reports wins on summary judgment and motions to dismiss, forum transfers, injunction victories, and successful appeals at both the Federal Circuit and Ninth Circuit; the bio also notes a summary-judgment win on patent exhaustion for T-Mobile in a UMTS/cellular-infrastructure case. I could not verify final dispositions in the tracked Flexiworld or Pedersen matters (the Flexiworld case was still pending as of late 2021), so no verdict or settlement results should be attributed to her from the tracked list alone.

On PTAB/IPR: I found no reliable evidence that she appears regularly in IPR/PGR proceedings — her profile emphasizes district-court litigation and Federal Circuit appeals rather than post-grant practice, so any PTAB experience should be treated as unconfirmed. Education: UC Berkeley School of Law, J.D. 2012 (Order of the Coif; California Law Review); Yale University, B.A. 2005. Admitted in California (2012) and Washington (2018), and before the Federal, Ninth, and Tenth Circuits. Recognized by Best Lawyers: Ones to Watch (Commercial Litigation 2023–2026; Intellectual Property Law 2026).