Haynes and Boone and Wilmer, Cutler, Pickering, Hale & Dorr are the leading law firms when it comes to the institution of inter partes reviews (IPRs) and covered business method (CBM) reviews at the USPTO, according to new analysis from Unified Patents. The research found that Haynes and Boone has the highest rate of institution for IPRs and CBMs for its clients when measured by case, while Wilmer leads the way in having the highest proportion of client claim reviews instituted. Fish & Richardson and Sterne Kessler Goldstein & Fox have had the most cases instituted overall.

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