Top 100 Patent Firms

Interested in patent law? Many firms claim to do patent work but here are the firms with the registered patent attorneys and agents to back up that claim. Finnegan Henderson wins the top honors in with 276 registered attorneys and agents.

Only 20% of the patent attorneys and agents in the U.S. work for these 100 firms. About a third of the remaining agents and attorneys are not affiliated with any firm or company, working as solo practioners. The remainder, about 55% of all patent attorney and agents, work for corporations, government agencies or smaller firms.

See also:

• TAPRE Course Patent Bar Review
• Latest from Top IP Blogs
• Vault Occupation Survey: Patent Lawyer
• Working at the US Patent Office

Rank	Firm	Patent Attorneys/Agents
1	Finnegan, Henderson, Farabow, Garrett & Dunner	276
2	Fish & Richardson	246
3	Jones Day	168
4	Kenyon & Kenyon	155
5	Foley & Lardner	151
6	Knobbe, Martens	139
7	Townsend and Townsend	138
8	Ropes & Gray	134
9	Brinks Hofer Gilson & Lione	122
10	Morrison & Foerster	114
11	Howrey	113
12	Fitzpatrick, Cella, Harper & Scinto	106
13	Morgan, Lewis & Bockius	104
14	Alston & Bird	101
15	McDermott, Will & Emery	98
16	Harness Dickey and Pierce	97
17	Fulbright & Jaworski	94
18	Baker Botts	92
19	Merchant and Gould	91
20	Kirkland & Ellis	84
21	Sterne Kessler Goldstein & Fox	83
22	Oblon Spivak McClelland Maier and Neustadt	82
23	Greenberg Traurig	80
24	McAndrews Held and Malloy	78
25	Woodcock Washburn Kurtz MacKiewicz and Norris	76
26	Banner & Witcoff	75
27	Leydig Voit and Mayer	74
28	Wilson Sonsini Goodrich & Rosati	73
29	Sughrue Mion	72
30	Sidley Austin	69
31	Blakely Sokoloff Taylor and Zafman	67
31	Wilmer Cutler Pickering Hale and Dorr	67
33	Morgan & Finnegan	66
33	Pillsbury Winthrop Shaw Pittman	66
35	Marshall Gerstein and Borun	64
35	Darby and Darby	64
35	Goodwin Procter	64
38	McDonnell Boehnen Hulbert & Berghoff	62
39	Schwegman Lundberg Woessner and Kluth	60
40	Perkins Coie	59
41	Buchanan Ingersoll	58
42	Hunton & Williams	56
42	Lerner David Littenberg Krumholz and Mentlik	56
44	Barnes & Thornburg	54
45	Dorsey & Whitney	53
45	Kilpatrick Stockton	53
45	Cooley Godward	53
45	Kirkpatrick & Lockhart Nicholson Graham	53
49	King & Spalding	52
50	Michael Best & Friedrich	51
50	Connolly Bove Lodge & Hutz	51
50	Akin Gump Strauss Hauer & Feld	51
53	Cantor Colburn	50
53	Christie Parker and Hale	50
53	Birch Stewart Kolasch and Birch	50
56	Orrick, Herrington & Sutcliffe	49
57	Wolf, Greenfield & Sacks	48
57	Duane Morris	48
59	Mintz, Levin, Cohn, Ferris, Glovsky	47
59	Klarquist Sparkman	47
61	DLA Piper Rudnick Gray Cary	46
61	Fay Sharpe Fagan Minnich and McKee	46
63	Venable	44
63	Fitch Even Tabin and Flannery	44
63	Workman Nydegger and Seeley	44
66	Dickstein Shapiro Morin & Oshinsky	43
66	Paul, Hastings, Janofsky & Walker	43
68	Brooks and Kushman	42
68	Reed Smith	42
68	Nixon Peabody	42
71	Frommer Lawrence and Haug	41
71	Heller Ehrman	41
73	Edwards Angell Palmer & Dodge	40
74	Hamilton Brook Smith and Reynolds	39
74	Hogan & Hartson	39
74	Senniger Powers Leavitt and Roedel	39
74	Proskauer Rose	39
74	Oliff & Berridge	39
74	Shook, Hardy & Bacon	39
80	Baker & McKenzie	37
80	Wood Herron and Evans	37
80	Fenwick & West	37
83	Woodard Emhardt Naughton Moriarty and McNett	36
83	Conley Rose and Tayon	36
83	Patterson & Sheridan	36
86	Bell, Boyd & Lloyd	35
86	Seed Intellectual Property Law Group	35
86	Ratner Prestia	35
86	Drinker Biddle & Reath	35
86	Snell & Wilmer	35
91	Lee & Hayes	34
91	Dechert	34
93	Weil, Gotshal & Manges	33
93	Christensen O'Connor Johnson Kindness	33
93	Welsh and Katz	33
93	Brown Raysman	33
93	Greenblum and Bernstein	33
98	Beyer Weaver & Thomas	32
98	Thomas Kayden Horstemeyer and Risley	32
98	Vinson & Elkins	32