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

  • Technical field:  IT (information technology, computer Software, computer program, method using software, 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
11192Fish & Richardson
21150Kilpatrick Townsend & Stockton
3895Schwegman Lundberg & Woessner
4879Oblon McClelland Maier & Neustadt
5850Knobbe Martens Olson & Bear
6838Sughrue Mion
7760Cantor Colburn
8665Harness Dickey & Pierce
9660Patterson & Sheridan
10547Fenwick & West
11518Finnegan Henderson Farabow Garrett & Dunner
12498Birch Stewart Kolasch & Birch
13496Lowenstein Sandler
14492Haynes & Boone
15449Morgan Lewis & Bockius
16448Meyertons Hood Kivlin Kowert & Goetzel
17447Baker Botts
18446Banner & Witcoff
19432Jefferson IP Law
21422Womble Bond Dickinson (US)
22416Foley & Lardner
23412Canon USA Inc IP Division
24382McDonnell Boehnen Hulbert & Berghoff
25378Perkins Coie
26367McDermott Will & Emery
27361Nixon & Vanderhye
28352Brinks Gilson & Lione
29334Lee & Hayes
30331Alston & Bird
32312Dentons US
33307Workman Nydegger
34306Staas & Halsey
35303Shook Hardy & Bacon
36292Scully Scott Murphy & Presser
38290Fitzpatrick Cella Harper & Scinto
39289Marshall Gerstein & Borun
40285Nicholson De Vos Webster & Elliott
41283Hickman Palermo Becker Bingham
42282Baker & Hostetler
43269Sheppard Mullin Richter & Hampton
44267Van Pelt Yi & James
45257McClure Qualey & Rodack
46253K&L Gates
47253Shumaker & Sieffert
48250Amin Turocy & Watson
49246Garlick & Markison
50240Michael A Springs
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, IT 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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