U.S. District Court for the Eastern District of Texas, Marshall Division

Court Profile: U.S. District Court for the Eastern District of Texas, Marshall Division

Date: 2026-05-02
Analyst: Gemini

Court Overview

The United States District Court for the Eastern District of Texas, located in the Fifth Circuit, has long been a pivotal venue for patent litigation in the United States. The Marshall Division, situated in a small city in East Texas, became the epicenter of U.S. patent litigation for years. Following the Supreme Court's 2017 decision in TC Heartland, which tightened venue requirements, the district saw a significant drop in filings. However, recent data indicates a strong resurgence, with the Eastern District reclaiming its position as the busiest patent forum in the country by 2024. Reports from 2025 and early 2026 confirm that the district, and specifically Judge Rodney Gilstrap's courtroom, handles a substantial portion of the nation's patent docket, attracting a high volume of new cases and hosting jury trials that result in significant damage awards.

Patent Docket Reputation

The Eastern District of Texas gained a reputation as a "rocket docket" for its speed in moving cases to trial, a feature attractive to plaintiffs seeking to pressure defendants into settlements. This, along with a perception of being plaintiff-friendly, historically made it the nation's most popular patent venue. While its time-to-trial has fluctuated with its caseload, the court's experienced judiciary and commitment to moving cases have contributed to its recent return to prominence. The court has historically been reluctant to grant motions to transfer cases to other venues, although this practice has faced increased scrutiny from the Federal Circuit. The district's judges are known for their hands-on case management and adherence to established local patent rules, providing a predictable, albeit demanding, litigation environment.

Local Rules and Procedures

The court operates under a comprehensive set of Local Patent Rules that govern nearly every aspect of a case, from initial disclosures to claim construction. These rules establish a structured and often fast-paced schedule, requiring early disclosure of infringement and invalidity contentions. For instance, invalidity contentions are typically due within 45 days of the service of infringement contentions. The rules lay out a detailed process for claim construction (Markman) hearings, including the exchange of proposed terms and preliminary constructions, culminating in a joint prehearing statement. Judges in the district, particularly Judge Gilstrap, have also implemented specific orders and procedures, such as rules for challenging patent eligibility under 35 U.S.C. § 101, which require these challenges to be served concurrently with invalidity contentions.

Notable Cases and Rulings

The Marshall Division has overseen numerous high-stakes patent trials. The provided data tracks the active case of ABC IP, LLC et al. v. MaRs Trigger, LLC et al. As of early 2026, recent activity includes a significant victory for AUO Corporation, which secured a jury verdict of non-infringement in a case brought by Phenix Longhorn, LLC; this was reportedly the first such defense verdict for a Taiwanese company in the division in over two decades. The court, particularly Judge Gilstrap's docket, saw several of the highest patent damages awards in the nation during 2025. These included a $175 million verdict for Headwater Research LLC against Verizon and a $78.5 million award for Anonymous Media Research Holdings LLC.

Judges

The most prominent jurist in the Marshall Division is Chief Judge J. Rodney Gilstrap. Appointed in 2011, he has presided over a larger number of patent cases than any other federal judge for many years, at times handling nearly 20% or more of all patent cases filed nationwide. He is known for his detailed case management and deep experience in patent law. Judge Gilstrap served as Chief Judge of the Eastern District from 2018 to March 2025. Another key judge in the district is Judge Amos L. Mazzant, III, who succeeded Judge Gilstrap as Chief Judge in March 2025. While fewer patent cases are filed in the Sherman division where Judge Mazzant primarily sits compared to Marshall, his role as Chief Judge is significant for the administration of the entire district.