E-Seller Litigation Remained Lower in Q4 Following Rule Changes in Key Districts
March 18, 2026
RPX’s latest quarterly report shows that litigation from operating company plaintiffs increased by 26% in Q4 2025 compared to the fourth quarter last year. Operating company filings last quarter were also 26% higher than in Q3 2025 and we...
Read full postMonetization Firms, Familiar Individuals, and Inventor-Controlled Plaintiffs Target E-Commerce and Software Products in Q4
March 11, 2026
The top market sector for NPE litigation in Q4 2025 was E-Commerce and Software, accounting for 36% of the defendants added to patent litigation campaigns during the quarter. Consumer Electronics and PCs saw the second highest amount of NPE...
Read full postReexams Spiked Further in Q4 as USPTO Continued to Tighten IPR Limits
March 4, 2026
As the USPTO continues to make changes limiting access to America Invents Act (AIA) review, petitioners have responded by filing more and more ex parte reexaminations—which, while slower than inter partes reviews (IPRs), are not subject t...
Read full postJudge Gilstrap Was Still on Top in 2025, but Judge Albright Stayed in the News
February 18, 2026
The top district judge for patent litigation in 2025 was Eastern District of Texas Judge Rodney Gilstrap, who oversaw 19% of all new patent litigation this past year. Notably, Judge Gilstrap also presided over trials that led to five of the...
Read full postPTAB Institution Rates Dropped in 2025 Amid Discretionary Denial Expansion
February 4, 2026
Over the course of 2025, the USPTO made a series of changes to the processes and substantive factors governing institution at the Patent Trial and Appeal (PTAB)—changes that have increasingly limited access to America Invents Act (AIA) re...
Read full postEast Texas, Still in First Place, Saw Bulk of 2025’s High-Dollar Verdicts
January 28, 2026
The Eastern District of Texas was the top patent district for overall litigation (i.e., with no filter for plaintiff type) and NPE litigation in 2025, also holding the number three spot for operating company litigation. The year’s second ...
Read full postAIA Review Petitions Plummeted in Q4 Following Changes Limiting IPR
January 21, 2026
The Patent Trial and Appeal Board (PTAB) saw just 194 petitions for America Invents Act (AIA) review in the third quarter of 2025, including 181 petitions for inter partes review (IPR) and 13 petitions for post-grant review (PGR). This mark...
Read full postNPE and OpCo Filings Increased for Second Year in a Row in 2025
January 14, 2026
NPEs added 2,236 defendants to patent litigation campaigns in 2025, an increase of 18.7% compared to 2024 (when such plaintiffs added 1,884 defendants)—which, in turn, saw 22% more NPE litigation than 2023. Operating companies added 1,190...
Read full postE-Seller Litigation Dropped in Q3 as Some Judges Began Enforcing Procedural Limits
December 17, 2025
RPX’s latest quarterly report shows that litigation from operating company plaintiffs went up by 4% in the third quarter of 2025, with filings increasing by 6% in Q1-Q3. However, these data exclude another distinct category of litigation ...
Read full postEstablished Monetizers, Funded Plaintiffs, and Inventor-Controlled NPEs Targeted E‑Commerce and Software in Q3
December 10, 2025
The top market sector for NPE litigation in Q3 2025 was E-Commerce and Software, accounting for 41% of the defendants added to patent litigation campaigns during the quarter. Consumer Electronics and PCs saw the second highest amount of NPE...
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