Cabello Hall Zinda Ranked #18 Nationally in PTAB Performance and #67 in PTAB Firm Activity

Cabello Hall Zinda is proud to have been recognized by Patexia’s PTAB 2025 Intelligence Report as a top 25 best performing law firm and top 50 most active law firm before the Patent Trial and Appeal Board (PTAB). Specifically, we were ranked as the #18 best performing firm in the country and the #37 most active firm in the country. This recognition puts us alongside some of the most prominent big firms, such as Fish & Richardson, McKool Smith, and Baker Botts. This achievement also demonstrates that, no

t only do we go toe-to-toe with top firms in the country, we also achieve better results than the vast majority of them. 

Notably, this recognition does not account for ex parte reexaminations before the PTAB. Our firm is undefeated in the 12 ex parte reexams handled in the past three years, with 3 others currently pending.