U.S. District Court for the Eastern District of Kentucky

Court Profile: U.S. District Court for the Eastern District of Kentucky

Court overview. The U.S. District Court for the Eastern District of Kentucky (E.D. Ky.), headquartered in Lexington with divisions in Ashland, Covington, Frankfort, London, and Pikeville, sits within the Sixth Circuit (patent appeals run to the Federal Circuit). It is a generalist court with one of the smallest patent dockets in the federal system: Justia's NOS 830 listing shows only roughly six dozen patent filings over the past two decades, and this tracker follows a single matter. By contrast, Lex Machina's 2025 Patent Litigation Report found the Eastern District of Texas drew over 1,000 new patent cases in 2024 alone — more than twice any other district. E.D. Ky.'s patent work is not driven by NPE forum shopping but by defendants with local operations (e.g., Lexmark's Lexington facility, which grounded venue under 28 U.S.C. § 1400(b) in the Flexiworld suit).

Patent docket reputation. E.D. Ky. has no reputation as a "rocket docket," a plaintiff-friendly patent venue, or a transfer destination — and no published Lex Machina, Unified Patents, or Reuters analysis characterizes its judges' patent outcomes, so no plaintiff/defendant-friendly labels are supportable. In the district's highest-profile recent patent matter, Flexiworld Technologies, Inc. v. Lexmark International, Inc. (5:22-cv-00097-KKC), Judge Karen K. Caldwell denied Lexmark's renewed partial motion to dismiss on § 287(a) marking grounds and rejected Lexmark's bid to phase discovery (March 20, 2023), and earlier denied a stay request; the four consolidated actions — covering 15 wireless-printing patents — settled in January 2024 with undisclosed terms. The case never reached trial.

Local rules and procedures. E.D. Ky. and W.D. Ky. operate under Joint Local Rules; there are no dedicated local patent rules (no E.D. Tex.-style patent rules or W.D. Tex.-style claim-construction standing order). The court's Standing Case Management and Referral Order routes non-dispositive matters to the assigned magistrate judge while the district judge retains dispositive motions, Daubert motions, and motions in limine; discovery-stay requests filed alongside Rule 12 motions are likewise referred to the magistrate judge. Pro hac vice admission is governed by Joint Local Rule 83.2.

Notable cases and rulings. The tracked case, Flexiworld v. Lexmark, produced the district's most substantive published patent opinion in years: Judge Caldwell held that Flexiworld's amended pleadings rendered Lexmark's initial dismissal motion moot, rejected issue-preclusion based on a W.D. Tex. action (Flexiworld v. Roku) because different patents were at issue, and found Flexiworld's marking allegations sufficient — noting the patentee could recover pre-suit damages on actual-notice theories regardless. Related PTAB IPRs (e.g., IPR2023-00846) were terminated as settled. A newer patent case, Centre Firearms Co. v. Otter Creek Labs, LLC (6:25-cv-00210, filed Nov. 2025), is pending before Judge Robert E. Wier. Older docket entries include Lexmark v. Acacia Research (2007) and M-I L.L.C. v. Rotex, Inc. (2005).

Judges. The district has roughly nine active judgeships plus senior judges (FJC). As of mid-2026, David L. Bunning serves as Chief Judge — a June 2, 2026 reassignment order signed by him reallocated Senior Judge Danny C. Reeves's Lexington civil docket to Karen K. Caldwell, Claria Horn Boom, Robert E. Wier, and S. Chad Meredith upon Reeves's senior status. Judge Caldwell, who presided over Flexiworld v. Lexmark and served as chief judge from 2012–2019, now chairs the Judicial Panel on Multidistrict Litigation. Judge Wier is presiding over Centre Firearms v. Otter Creek, with Magistrate Judge Hanly A. Ingram handling pretrial referrals. No published analytics tie any of these judges to patent-specific win rates.