The following table shows the ranking of United States IP law firm. The ranking is based on the following conditions.

  • Technical field:  Clothing (shirt, shirt collar, bra, wetsuit, hair extension, footwear, belt, flame resistant garment, etc.)
  • Status:  United States granted patents in 2018 (registration date).
  • Count:  The number of patents represented by each United States IP law firm, attorney or agent was counted.  Even if attorney or agent belongs to a law firm, they were counted separately.
RankingNo.IP law firm
178Banner & Witcoff
268Shook Hardy & Bacon
353Honigman Miller Schwartz & Cohn
450Matthew H Szalach
550Jonathan P O'Brien
640Kilpatrick Townsend & Stockton
730Quinn IP Law
825Schwegman Lundberg & Woessner
925Klarquist Sparkman
1024Brinks Gilson & Lione
1117Thomas | Horstemeyer
1215Sterne Kessler Goldstein & Fox
1314Booth Udall Fuller
1413Muncy Geissler Olds & Lowe
1512Oblon McClelland Maier & Neustadt
1612Knobbe Martens Olson & Bear
1711Perkins Coie
189Barnes & Thornburg
199Cantor Colburn
209Fish & Richardson
In preparing the table, a patent search expert conducted a patent search using patent classification and keywords (as necessary) in order to extract patents in specific technical field (here, Clothing field).
In the patent search, it was confirmed that a high-accuracy population (i.e., a population not including non-relevant fields) of patents was obtained. Subsequently, the population was used to create the table.

By entering the Firm name in the "Attorney or Agent" column of USPTO database, you can find the patent information handled by each Firm.

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