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PTAB rankings: Top petitioners, patent owners and law firms in first nine months

Michael Loney, New York


Apple was the top petitioner, Qualcomm was the most-challenged patent owner and Fish & Richardson was the law firm involved in the most PTAB disputes filed in the first nine months of the year, according to data revealed by Managing IP

PTAB petition filing in the third quarter of this year was the highest since the second quarter of 2017. Between July 1 and September 30, 424 petitions were filed, up from 406 in the second quarter and 411 in the...


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