Top Patent Firms 2018 - Chemical and Materials Engineering

The Harrity Analytics Team compiled a list of the top patent law firms that are ranked based on the total number of U.S. utility patents that issued in 2018 where the patent firms were listed on the front of the utility patents, and the art unit is in technology center 1700. Only patent firms that have obtained at least 50 utility patents are included. An attempt was made to correct for typographical errors. Company legal departments were not eliminated from the list.

RankFirm NamePatents
1OBLON MCCLELLAND, MAIER & NEUSTADT, L.L.P.1148
2BIRCH STEWART KOLACH & BIRCH, LLP733
3SUGHRUE MION, PLC722
4OLIFF PLC654
5CANTOR COLBURN LLP582
6FOLEY & LARDNER LLP360
7WESTERMAN, HATTORI, DANIELS & ADRIAN, LLP359
8HARNESS, DICKEY & PIERCE P.L.C.340
8KNOBBE MARTENS OLSON & BEAR LLP340
10MCDERMOTT WILL & EMERY LLP284
11DENTONS LLP278
12LERNER, DAVID, LITTENBERG, KRUMHOLZ & MENTLIK, LLP252
13BUCHANAN INGERSOLL & ROONEY P.C241
14GREENBLUM & BERNSTEIN P.L.C.240
15FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER LLP239
16WENDEROTH, LIND & PONACK, L.L.C.238
17LEWIS ROCA ROTHGERBER CHRISTIE LLP228
18KILPATRICK TOWNSEND & STOCKTON LLP214
19LEE & MORSE P.C.202
20FISH & RICHARDSON P.C.186
21NIXON & VANDERHYE P.C.182
22BRINKS GILSON & LIONE172
23PATTERSON & SHERIDAN, LLP.171
24THE WEBB LAW FIRM166
25DRINKER BIDDLE & REATH LLP162
26K&L GATES LLP156
26BAKER & HOSTETLER LLP156
28RATNERPRESTIA152
29MILLEN WHITE ZELANO & BRANIGAN, P.C.150
30FITZPATRICK, CELLA, HARPER & SCINTO149
31DORITY & MANNING, P.A.147
32MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC146
33LOCKE LORD LLP145
34BROOKS KUSHMAN, P.C.141
35MORGAN LEWIS & BOCKIUS LLP136
36WOMBLE BOND DICKINSON (US) LLP134
36RANKIN, HILL & CLARK LLP134
36MERCHANT & GOULD P.C.134
36DINSMORE & SHOHL LLP134
40PEARNE & GORDON LLP129
41MUNCY, GEISSLER, OLDS & LOWE P.C.124
42JCIPRNET121
42DICKINSON WRIGHT PLLC121
44LEYDIG, VOIT & MAYER, LTD119
45YOUNG & THOMPSON118
45LUCAS & MERCANTI, LLP118
47OSHA LIANG LLP110
48FITCH, EVEN, TABIN & FLANNERY LLP108
49STUDEBAKER & BRACKETT PC106
49BURR & BROWN, PLLC106
51DLA PIPER LLP105
51BANNER & WITCOFF, LTD105
53HAUPTMAN HAM LLP104
54PILLSBURY WINTHORP SHAW PITTMAN, LLP103
54HAMRE, SCHUMANN, MUELLER & LARSON, P.C.103
56WOLF, GREENFIELD & SACKS, P.C.102
57LADAS & PARRY LLP99
58POLSINELLI LLP98
58MARSHALL, GERSTEIN & BORUN LLP98
58MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP98
61HUSCH BLACKWELL LLP95
62NORTON ROSE FULBRIGHT94
63WEAVER AUSTIN VILLENEUVE & SAMPSON LLP93
64HAYNES & BOONE, LLP90
65SCHWEGMAN LUNDBERG & WOESSNER, P.A.89
65DUANE MORRIS LLP89
67THORPE NORTH & WESTERN LLP87
67ROTHWELL, FIGG, ERNST & MANBECK P.C.87
69SNELL & WILMER L.L.P.86
70MICHAEL BEST & FRIEDRICH LLP84
71PERKINS COIE LLP82
71CARLSON, GAKSEY & OLDS. P.C.82
73SEED INTELLECTUAL PROPERTY LAW GROUP80
73NIXON & PEABODY LLP80
73GREER BURNS & CRAIN LTD.80
73ABEL LAW GROUP, LLP80
77RENNER OTTO BOISSELLE & SKLAR, LLP78
78CROWELL & MORING LLP77
79OSTROLENK FABER LLP76
80VOLPE & KOENIG, P.C.75
80PANITCH SCHWARZE BELISARIO & NADEL LLP75
80BLANK ROME LLP75
83THE MARBURY LAW GROUP73
84SALIWANCHIK, LLOYD & EISENSCHENK72
85ARMSTRONG TEASDALE LLP71
85ALSTON & BIRD LLP71
87CANON U.S.A. INC. IP DIVISION70
88ABELMAN, FRAYNE & SCHWAB69
89TRASKBRITT P.C.67
90WORKMAN NYDEGGER66
90WOOD HERRON & EVANS LLP66
90NORRIS MCLAUGHLIN P.A.66
90CONLEY ROSE, P.C.66
90GREENBERG TRAURIG LLP66
90DORSEY & WHITNEY LLP66
96STAAS & HALSEY LLP65
96RABIN & BERDO, P.C.65
96CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC65
99SCULLY, SCOTT, MURPHY & PRESSER, PC64
99MCGINN IP LAW GROUP, PLLC64
101BARNES & THORNBURG LLP62
102YOUNG BASILE HANLON & MACFARLANE, P.C.61
102NATH GOLDBERG & MEYER61
104VENABLE LLP60
104NOVICK, KIM & LEE, PLLC60
106SCIENBIZIP, P.C.59
106QUARLES & BRADY LLP59
106MAGINOT MOORE & BECK LLP59
106MCKEE, VOORHEES & SEASE, PLC59
110MCCARTER & ENGLISH, LLP57
111MASCHOFF BRENNAN56
111LORENZ & KOPF LLP56
111BRACEWELL LLP56
114YEE & ASSOCIATES, P.C.55
115WESTMAN CHAMPLIN & KOEHER, P.A.53
115THE DOBRUSIN LAW FIRM P.C.53
115LOWENSTEIN & SANDLER LLP53
115MCGARRY BAIR PC53
115KLARQUIST SPARKMAN, LLP53
115HONIGMAN MILLER SCHWARTZ & COHN LLP53
121AMSTER, ROTHSTEIN & EBENSTEIN LLP52
121BAKER BOTTS L.L.P52
123MEUNIER CARLIN & CURFMAN LLC51
123GE GLOBAL PATENT OPERATION51
125VORYS, SATER, SEYMOUR & PEASE LLP50
125SHERIDAN ROSS P.C.50
125MYERS BIGEL, P.A.50
125FLETCHER YODER P.C.50
125CALFEE HALTER & GRISWOLD LLP50