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IFI CLAIMS® 2011 Top 50 US Patent Law Firms

The rankings of the top US Patent Law firms for 2011 were compiled using data from the US Patent and Trademark Office (USPTO). The patent counts are for US utility patents granted in 2011 grouped by the patent attorney or agent on file at the USPTO. IFI uses a rigorous name standardization process to improve the accuracy of the data and distributes the resulting content to our partners and clients.

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Rank Firm US Grants
1 Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P. 5613
2 Sughrue Mion, PLLC 3389
3 Birch, Stewart, Kolasch & Birch, LLP 3020
4 Oliff & Berridge, PLC 2787
5 Harness, Dickey & Pierce, P.L.C. 2390
6 Fish & Richardson P.C. 2159
7 Finnegan, Henderson, Farabow, Garrett & Dunner LLP 2089
8 Knobbe Martens Olson & Bear LLP 1967
9 Cantor Colburn LLP 1820
10 McDermott Will & Emery LLP 1816
11 Nixon & Vanderhye P.C. 1811
12 Fitzpatrick, Cella, Harper & Scinto 1797
13 Kilpatrick Townsend & Stockton LLP 1669
14 Foley & Lardner LLP 1550
15 Blakely, Sokoloff, Taylor & Zafman LLP 1418
16 Brinks Hofer Gilson & Lione 1248
17 Buchanan Ingersoll & Rooney PC 1195
18 Schwegman, Lundberg & Woessner, P.A. 1180
19 Dickinson Wright PLLC 1141
20 Antonelli, Terry, Stout & Kraus, LLP. 1096
21 Staas & Halsey LLP 1063
22 Baker Botts L.L.P. 971
23 Morgan, Lewis & Bockius LLP 965
24 Kenyon & Kenyon LLP 934
25 Scully, Scott, Murphy & Presser, P.C. 919
26 Merchant & Gould P.C. 909
27 Banner & Witcoff, Ltd. 878
28 Patterson & Sheridan, LLP 859
29 Greenblum & Bernstein, P.L.C. 848
30 K&L Gates LLP 841
31 Ladas & Parry LLP 833
32 Brady, III, Wade J. 813
33 Altis Law Group, Inc. 803
34 Bacon & Thomas, PLLC 775
35 Myers Bigel Sibley & Sajovec, P.A. 749
36 Sterne, Kessler, Goldstein & Fox P.L.L.C. 737
37 McAndrews, Held & Malloy, Ltd. 720
38 Perkins Coie LLP 690
39 Morrison & Foerster LLP 688
40 Pillsbury Winthrop Shaw Pittman LLP 686
41 Lerner, David, Littenberg, Krumholz & Mentlik, LLP 677
42 DLA Piper LLP (US) 675
43 Edwards Angell Palmer & Dodge LLP 672
44 SNR Denton US LLP 664
45 McGinn IP Law Group, PLLC 655
46 Leydig, Voit & Mayer, Ltd. 651
47 Alston & Bird LLP 650
48 Muncy, Geissler, Olds & Lowe, PLLC 646
49 Canon U.S.A., Inc. I.P. Division 639
50 Osha * Liang LLP 633