AIA 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...
Read full postJudge Gilstrap Stayed on Top in Q3 as Judge Counts Held onto Second Place
December 3, 2025
The top district judge for patent litigation in Q3 2025 was Eastern District of Texas Judge Rodney Gilstrap, who passed his district’s chief judgeship to Judge Amos L. Mazzant in March 2025. ...
Read full postReexams Jumped in Q3 as Petitioners Faced IPR Constraints
November 19, 2025
The USPTO continued to expand the use of discretionary denials at the Patent Trial and Appeal Board (PTAB) in Q3 2025 through a series of decisions and rule changes that have collectively made it harder for patent defendants to win institut...
Read full postEast Texas Stayed on Top in Q3 Amid Notable Verdict Activity
October 29, 2025
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 Q3 2025, also holding the number-four spot for operating company litigation. In second for over...
Read full postInstitution Rates Dropped Further as Stewart Continued Discretionary Denial Expansion
October 22, 2025
The Patent Trial and Appeal Board (PTAB) instituted trial in just 35% of the America Invents Act (AIA) review petitions addressed in Q3, a significant drop from that same quarter last year (during which the institution rate was 72%) and fro...
Read full postNPE Filings Increased by 10% in the Third Quarter
October 16, 2025
NPEs added 530 defendants to patent litigation campaigns in Q3 2025, a 10% increase from the third quarter last year. Q3 NPE filings were 9% less than in Q2 2025 but exceeded the trailing Q3 average for 2022-2024 by 12%. So far this year, N...
Read full postPatent Owners Sued Numerous Online Storefronts Selling Counterfeits in Q2
September 25, 2025
RPX’s latest quarterly report shows that litigation from operating company plaintiffs went up by 9% in the first half of 2025, also increasing by 14% in the second quarter. However, these data exclude another distinct category of litigati...
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