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

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

Date: 2026-05-11
Analyst: Senior U.S. Patent Litigation Analyst

Court Overview

The U.S. District Court for the Eastern District of Texas (EDTX), a constituent court of the U.S. Court of Appeals for the Fifth Circuit, has historically been one of the most popular venues for patent infringement litigation in the United States. Located in Tyler, Texas, the court, along with the nearby Marshall Division, has attracted a significant percentage of the nation's patent docket. After a decline in filings following the Supreme Court's 2017 TC Heartland decision on patent venue, the district has seen a resurgence. As of the first quarter of 2026, the Eastern District of Texas was the top patent district for overall litigation. Reports from 2024 and 2025 also indicate a rebound, with the district reclaiming its position as the most active patent court in the nation.

Patent Docket Reputation

For years, the Eastern District of Texas was known as a "rocket docket" for its speed in moving patent cases to trial. It developed a reputation for being plaintiff-friendly, due in part to a historical reluctance to transfer cases to other venues and procedural rules that could make litigation expensive for defendants early on. However, the Federal Circuit has increasingly scrutinized and reversed denials of transfer motions, leading to a shift in practice. While the court remains a fast venue, recent statistics suggest a median time to a jury trial of approximately 24 months. Data on trial outcomes has challenged the "plaintiff-friendly" narrative; one analysis of cases before Judge Rodney Gilstrap, who handles a large portion of the district's patent docket, found that from 2011 to 2021, defendants were found to infringe in 49.3% of trials, a lower rate than the national average.

Local Rules and Procedures

The Eastern District of Texas was one of the first districts to adopt a specific set of local patent rules, which apply to all patent cases filed in or transferred to the district. These rules establish a structured and often aggressive schedule for litigation, governing key deadlines for infringement and invalidity contentions, document production, and claim construction (Markman) proceedings. For instance, the rules set a 45-day window between the service of infringement contentions and the due date for invalidity contentions. The court also has a model order focused on narrowing patent claims and prior art to reduce costs and streamline cases. These detailed procedures provide predictability for litigants but require strict adherence to avoid penalties, such as the preclusion of claims or defenses.

Notable Cases and Rulings

The Tyler and Marshall divisions have presided over numerous high-stakes patent disputes. A prominent tracked case is the long-running litigation between VirnetX Inc. and Apple Inc. This series of lawsuits, filed in the Tyler Division, has resulted in multiple jury trials and nine-figure verdicts for VirnetX related to Apple's VPN On Demand and FaceTime features, with one verdict reaching $502.8 million in 2020. More recently, in the first quarter of 2026, the district saw significant verdicts, including a jury finding that Apple did not infringe patents asserted by PanOptis, and another jury awarding IPValue Management plaintiffs approximately $66.9 million against BOE for infringing LCD technology patents. Another 2026 verdict saw AUO Corporation secure a defense verdict against Phenix Longhorn, LLC, with a jury finding no infringement and invalidating one of the asserted patents.

Prominent Judges

The patent docket in the Eastern District of Texas, particularly in the Marshall and Tyler Divisions, is heavily influenced by a small number of experienced judges.

• District Judge J. Rodney Gilstrap (Marshall Division): Appointed in 2011, Judge Gilstrap has presided over more patent cases than any other federal judge in the country for many years. His efficient case management and deep familiarity with patent law have made his courtroom a focal point of U.S. patent litigation.
• Chief Judge Amos L. Mazzant, III (Sherman Division): While based in the Sherman Division, Judge Mazzant also handles patent cases and contributes to the district's overall patent jurisprudence. He became Chief Judge in March 2025.
• District Judge Robert W. Schroeder III (Texarkana/Tyler Divisions): Judge Schroeder presided over one of the VirnetX v. Apple trials that resulted in a significant verdict.