Top Patent Firms 2018 - Transportation, Construction, Agriculture, Licensing and Review

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 between 3600-3619, 3630-3679. 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
1OLIFF PLC557
2BROOKS KUSHMAN, P.C.548
3CANTOR COLBURN LLP534
4OBLON MCCLELLAND, MAIER & NEUSTADT, L.L.P.457
5HARNESS, DICKEY & PIERCE P.L.C.449
6KNOBBE MARTENS OLSON & BEAR LLP337
7SUGHRUE MION, PLC333
8MCDERMOTT WILL & EMERY LLP321
9KILPATRICK TOWNSEND & STOCKTON LLP304
10BIRCH STEWART KOLACH & BIRCH, LLP275
11BRINKS GILSON & LIONE226
12FOLEY & LARDNER LLP225
12CROWELL & MORING LLP225
14MORGAN LEWIS & BOCKIUS LLP221
15WESTERMAN, HATTORI, DANIELS & ADRIAN, LLP217
16PRICE HENEVELD LLP213
17FISH & RICHARDSON P.C.203
18MICHAEL BEST & FRIEDRICH LLP202
19LORENZ & KOPF LLP200
20NORTON ROSE FULBRIGHT195
21MUNCY, GEISSLER, OLDS & LOWE P.C.188
22MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC187
23DINSMORE & SHOHL LLP185
24BAKER BOTTS L.L.P181
25THE WEBB LAW FIRM174
26QUINN IP LAW172
27FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER LLP171
28BEJIN BIENEMAN PLC168
29BARNES & THORNBURG LLP161
30GLOBAL IP COUNCELORS, LLP159
31MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP158
32SNELL & WILMER L.L.P.155
33HAUPTMAN HAM LLP153
34KING & SCHICKLI, PLLC152
35BUCHANAN INGERSOLL & ROONEY P.C151
36PATTERSON & SHERIDAN, LLP.146
37WENDEROTH, LIND & PONACK, L.L.C.139
38STUDEBAKER & BRACKETT PC136
39GREENBLUM & BERNSTEIN P.L.C.134
40VOLPE & KOENIG, P.C.133
41RANKIN, HILL & CLARK LLP132
41NIXON & VANDERHYE P.C.132
41DORITY & MANNING, P.A.132
44BAKER & HOSTETLER LLP125
44BANNER & WITCOFF, LTD125
46ANDRUS INTELLECTAUL PROPERTY LAW, LLP124
47WORKMAN NYDEGGER123
48YOUNG & THOMPSON122
49MERCHANT & GOULD P.C.119
50TAFT STETTININUS & HOLLISTER LLP117
51CARLSON, GAKSEY & OLDS. P.C.116
52MCCOY RUSSELL LLP115
53HAYNES & BOONE, LLP114
54DICKINSON WRIGHT PLLC112
55BLANK ROME LLP108
55ALSTON & BIRD LLP108
57SKF USA INC. PATENT DEPT.106
57MARSHALL, GERSTEIN & BORUN LLP106
59LERNER, DAVID, LITTENBERG, KRUMHOLZ & MENTLIK, LLP102
59FITZPATRICK, CELLA, HARPER & SCINTO102
61MILLER, MATTHIAS & HULL LLP101
62GREER BURNS & CRAIN LTD.100
63FITCH, EVEN, TABIN & FLANNERY LLP99
64WOMBLE BOND DICKINSON (US) LLP98
64REISING ETHINGTON P.C.98
66NEAL, GERBER & EISENBERG LLP95
67RABIN & BERDO, P.C.93
68TRASKBRITT P.C.92
68SCHWEGMAN LUNDBERG & WOESSNER, P.A.92
68PEARNE & GORDON LLP92
71LOCKE LORD LLP91
72HONIGMAN MILLER SCHWARTZ & COHN LLP90
73DARROW MUSTAFA PC89
74TAROLLI, SUNDHEIM, COVELL & TUMMINO L.L.P.88
74RENNER OTTO BOISSELLE & SKLAR, LLP88
74OSHA LIANG LLP88
74GE GLOBAL PATENT OPERATION88
78LEE & HAYES PLLC85
79DRINKER BIDDLE & REATH LLP84
79ALLEMAN HALL CREASMAN & TUTTLE LLP84
81WOOD HERRON & EVANS LLP82
81WESTMAN CHAMPLIN & KOEHER, P.A.82
83PERKINS COIE LLP80
83LEYDIG, VOIT & MAYER, LTD80
85MORI & WARD, LLP78
86FLETCHER YODER P.C.77
87CARRIER BLACKMAN & ASSOCIATES, P.C.76
88QUARLES & BRADY LLP75
88SHUMAKER, LOOP & KENDRICK, LLP75
88HENRY M. FEIEREISEN LLC75
91SHERIDAN ROSS P.C.74
91KEATING & BENNETT, LLP74
93FAEGRE BAKER DANIELS LLP73
94KAMRATH IP LAWFIRM, P.A.72
95DAVIDSON, DAVIDSON & KAPPEL, LLC71
96YOUNG BASILE HANLON & MACFARLANE, P.C.70
97NELSON MULLINS RILEY & SCARBOROUGH LLP69
98ARMSTRONG TEASDALE LLP67
99MACMILLAN, SOBANSKI & TODD, LLC66
99HOVEY WILLIAMS LLP66
101COZEN O'CONNOR64
101DORSEY & WHITNEY LLP64
103HANLEY FLIGHT & ZIMMERMAN, LLC63
104MASCHOFF BRENNAN62
104COLLARD & ROE, P. C.62
106WOLF, GREENFIELD & SACKS, P.C.61
106POLSINELLI LLP61
106SEED INTELLECTUAL PROPERTY LAW GROUP61
109CONLEY ROSE, P.C.60
110JENKINS, WILSON, TAYLOR & HUNT, P.A.59
111STAAS & HALSEY LLP58
112RATNERPRESTIA57
112PATENT PORTFOLIO BUILDERS, PLLC57
112DAVIS & BUJOLD, PLLC57
115POSZ LAW GROUP, PLC56
115HUSCH BLACKWELL LLP56
115HAMRE, SCHUMANN, MUELLER & LARSON, P.C.56
115FAY SHARPE LLP56
115BRACEWELL LLP56
120THOMAS HORSTEMEYER, LLP55
120SCHMEISER, OLSEN & WATTS, LLP55
120MAGINOT MOORE & BECK LLP55
120LEASON ELLIS LLP55
124HUNTON ANDREWS KURTH LLP54
125LADAS & PARRY LLP53
126MOORE & VAN ALLEN PLLC52
126LEWIS ROCA ROTHGERBER CHRISTIE LLP52
126LEMPIA SUMMERFIELD KATZ LLC52
126HESLIN ROTHENBERG FARLEY & MESITI P.C.52
126HOGAN LOVELLS US LLP52
131FOX ROTHSCHILD LLP51
131CANON U.S.A. INC. IP DIVISION51
133TUMEY L.L.P.50
133ROBERTS MLOTKOSKI SAFRAN COLE & CALDERON, P.C.50