Washington Western District Court

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U.S. District Court for the Western District of Washington — Patent Litigation Profile

Court overview. The U.S. District Court for the Western District of Washington (W.D. Wash.) sits in the Ninth Circuit, with courthouses in Seattle and Tacoma; Federal Circuit law governs substantive patent issues on appeal. This site currently tracks 17 patent cases there. By national volume the district is a mid-tier patent venue rather than a leader — it does not appear among the top districts for new patent filings in the Lex Machina 2025 Patent Litigation Report or in RPX's recent NPE filing summaries, where E.D. Tex., D. Del., W.D. Tex., C.D. Cal., N.D. Cal. and D.N.J. dominate. Several of the district's filings are attributable to the concentration of technology and retail defendants headquartered in the Seattle area (Amazon, Microsoft, Costco, T-Mobile, Starbucks, Nintendo of America).

Docket reputation. W.D. Wash. is not a "rocket docket" in the E.D. Tex./W.D. Tex. mold, and I found no published Lex Machina, Unified Patents or Reuters analysis labeling it plaintiff-friendly or defense-friendly. An often-cited empirical study (Holte & Seaman, Reconceiving the Patent Rocket Docket, 11 J. Marshall Rev. Intell. Prop. L. 58 (2011)) identified the district among "emerging" rocket dockets based on 1985–2010 survival analysis — a historical data point, not a current characterization. Venue is largely corporate-residence driven post-TC Heartland. Transfer practice under 28 U.S.C. § 1404(a) is routine, with cases sometimes transferred in or out (the Flexiworld v. Amazon docket carried a "TRANSIN" flag); I could not verify a district-specific transfer grant rate and will not estimate one. Claim construction function is central and is the procedural gate through which most cases move; patent demands in the tracked cases carry jury demands, but no reliable district-level jury-versus-bench trial split is available from the sources reviewed.

Local rules and procedures. The district has standalone Local Patent Rules (LPR 101–140), adopted in 2015 and modeled largely on the Northern District of California's rules. Distinctive features: LPR 120/121 require the patentee's asserted claims and infringement contentions within 15 days of the Rule 26(f) conference, and — less commonly among districts — require the accused infringer to serve detailed non-infringement contentions as well as invalidity contentions; amendments require good cause (LPR 124). Claim construction runs on a fixed clock: proposed terms (LPR 130), preliminary constructions and extrinsic evidence (LPR 131), joint claim construction and prehearing statement (LPR 132), claim construction discovery (LPR 133), simultaneous briefs with no replies absent leave (LPR 134), and a hearing (LPR 135) — roughly 210 days from the Rule 26(f) conference to the close of briefing. The court construes a maximum of ten claim terms absent leave, and LPR 140 sets willfulness/advice-of-counsel procedures. LPR 101 preserves each judge's authority to modify or dispense with the rules, and several judges issue individual patent standing orders — e.g., Judge Marsha Pechman's Standing Order for Patent Cases (Markman set about 180 days after the scheduling order) and Judge Tana Lin's Standing Order re Patent Cases, both of which track the LPR framework.

Notable cases and trends. The district's most consequential patent decision is Microsoft Corp. v. Motorola, Inc., in which Judge James L. Robart issued the first U.S. opinion setting a RAND royalty rate for standard-essential patents, affirmed by the Ninth Circuit in 2015. Among tracked matters: Flexiworld Technologies, Inc. v. Amazon.com, Inc. (2:21-cv-01055, Judge David G. Estudillo) produced a substantive claim construction order in March 2024 on means-plus-function issues and was terminated July 28, 2025, following parallel PTAB proceedings; Starbucks Corporation v. Valtrus Innovations Ltd. (2:25-cv-01859, Judge John H. Chun) is active; Weple IP Holdings LLC v. Meta Platforms Inc. was dismissed with prejudice in August 2024; Mesa Digital LLC v. LG Electronics U.S.A., Inc. (2019) was dismissed; and Walker Digital, LLC v. Microsoft Corp. (2010) is an earlier tracked NPE action. Also tracked: Vision Works IP Corp. v. Polaris, Inc. and JiMi IP, LLC et al. v. WA7 Volli (reported pending filing date 2026-02-11).

Judges. Patent-heavy names reliably sourced are Judge James L. Robart (SEP/RAND, senior status since 2016), Judge Marsha J. Pechman (patent standing order), Judge David G. Estudillo (Flexiworld claim construction), Judge John H. Chun (Starbucks v. Valtrus), and Judge Tana Lin (published patent standing order). I did not verify a current active-judgeship count or per-judge patent caseload data for this district, so no ranking of individual judges is offered; some patent discovery and Markman work is also handled by magistrate judges by consent, which the docket data here does not separately break out.