U.S. District Court, Eastern District of Pennsylvania (Philadelphia)

I'll research the Eastern District of Pennsylvania's patent litigation practice before drafting.

Let me gather current data on filings, judges, and notable rulings.

U.S. District Court for the Eastern District of Pennsylvania — Patent Litigation Profile

Court overview. The U.S. District Court for the Eastern District of Pennsylvania (E.D. Pa.) sits in Philadelphia (James A. Byrne U.S. Courthouse), with divisional points in Allentown, Reading, and elsewhere, and is part of the Third Circuit. Patent appeals from the court go to the U.S. Court of Appeals for the Federal Circuit under 28 U.S.C. § 1295. The patent docket is small. A PACER-based analysis published in The Legal Intelligencer (Rebecca Melley, "Managing Patent Infringement Discovery in Eastern District of Pennsylvania") found roughly 24 patent cases filed per year over a three-year window — under 1% of the district's civil filings — compared with roughly 240/year in N.D. Cal., 929/year in D. Del., and 1,815/year in E.D. Tex. in the same period. That figure is dated (mid-2010s), but the district's relative position has not changed: Lex Machina's recent annual reports identify W.D. Tex., D. Del., and E.D. Tex. as the three districts capturing over half of all U.S. patent filings, and E.D. Pa. is not among the leading patent venues. The district does carry a meaningful pharmaceutical/biotech docket given the region's life-sciences employers, though much of that arrives as Hatch-Waxman/ANDA litigation rather than classic infringement suits.

Patent docket reputation. E.D. Pa. is not a "rocket docket" venue in the E.D. Tex./W.D. Tex. sense, and it is not a magnet forum for NPE filings — its low volume reflects regional parties (pharma, telecom, technology companies headquartered or operating in the Philadelphia area) rather than forum-shopping plaintiffs. One frequently cited historical data point cuts the other way: Lex Machina's 2013 Patent Litigation Year in Review found E.D. Pa. led all districts in median time to trial in both 2012 (255 days) and 2013 (212 days). The caveat matters — those medians rested on one to two trials per year, so the statistic is essentially anecdotal rather than evidence of a systemic fast-track. There is no published Lex Machina/Unified Patents analysis characterizing E.D. Pa. as plaintiff- or defendant-friendly, and I found none for transfer-motion grant rates or jury-versus-bench trial splits specific to this district; § 1404(a) transfer practice follows Third Circuit law (Jumara v. State Farm), but I cannot supply a reliable local grant rate and won't estimate one.

Local rules and procedures. The district has no local patent rules — a notable contrast with N.D. Cal.'s Patent L.R., E.D. Tex.'s patent rules and model order, W.D. Tex.'s claim construction procedures, and D. Del.'s Connolly scheduling orders. E.D. Pa. operates on thin district-wide Local Civil Rules (last amended effective May 8, 2023) with a heavy judge-specific overlay: no district-wide brief page limit (Local Rule 7.1), no district-wide statement-of-material-facts framework for summary judgment, sealing only by court order (Rule 5.1.5), discovery materials not filed and a conferral certification for discovery motions (Rule 26.1), and pro hac vice under Rule 83.5. Because there is no form patent scheduling order, patent-specific deadlines (infringement contentions, claim-construction exchanges, narrowing of asserted claims) are negotiated case by case and adopted in the Rule 16 scheduling order — practitioners report that claim-construction and contention deadlines therefore vary substantially by judge, and each judge's standing orders must be checked individually.

Notable cases and rulings. The only matter reflected in this site's tracked data is RAH Color Technologies LLC v. Ricoh Americas Corporation et al. (filed Sept. 17, 2015), a patent-holding-entity suit asserting color imaging/printing patents; both tracked entries appear to be the same matter logged twice (once "resolved," once "resolved/closed"), and the tracked data supplies no judge assignment, outcome, or docket number. Beyond the tracked set, the most prominent recent E.D. Pa. patent matter is Promptu Systems Corp. v. Comcast Corp., No. 16-cv-06516: after the district court adopted Comcast's narrowing constructions in 2022 and entered judgment of non-infringement by stipulation, the Federal Circuit (No. 2022-1939, Feb. 16, 2024) reversed the constructions of "back channel," "multiplicity of received identified speech channels," "speech recognition system coupled to a wireline node," and "centralized processing station" and remanded — a useful illustration of claim-construction risk in the district. Also noteworthy is the volume of patent work E.D. Pa. judges do outside the district: Judge Joshua D. Wolson has sat by designation in D. Del. on cases including Arbutus Biopharma/Genevant v. Moderna (No. 22-cv-252, D. Del.), issuing a February 2026 summary judgment ruling on the § 1498 government-contractor defense.

Judges. Sourced material identifies Judge Joshua D. Wolson (confirmed 2019; active in patent matters, frequent D. Del. designee), Judge Mark A. Kearney (confirmed 2014; former patent litigator, listed among judges presenting on district operations), and Judge Paul S. Diamond (substantial published individual practices — default no oral argument, 25-page brief limit, 5-business-day continuance deadline) as among the judges most likely to handle patent filings in the district. Other judges historically active in the district's IP docket include Chief Judge Juan R. Sánchez and Judge Gene E.K. Pratter (who died in 2024). Note that this list is drawn from published standing orders and reporting rather than from the tracked-case data, which identifies no judges; anyone assessing a specific E.D. Pa. patent matter should confirm the assigned judge and pull that judge's current standing order from paed.uscourts.gov, since requirements vary materially judge to judge.