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 2021 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.
| Rank - Overall | Law Firm Name | 2021 Patents | 2020 Patents | YoY Difference |
|---|---|---|---|---|
| 1 | CANTOR COLBURN LLP | 512 | 615 | -17% |
| 2 | OLIFF PLC | 484 | 622 | -22% |
| 3 | OBLON MCCLELLAND MAIER & NEUSTADT L.L.P. | 366 | 444 | -18% |
| 4 | HARNESS IP | 364 | 388 | -6% |
| 5 | SUGHRUE MION PLC | 351 | 409 | -14% |
| 6 | DINSMORE & SHOHL LLP | 343 | 244 | 41% |
| 7 | FISH & RICHARDSON P.C. | 341 | 378 | -10% |
| 8 | MORGAN LEWIS & BOCKIUS LLP | 322 | 442 | -27% |
| 9 | FOLEY & LARDNER LLP | 321 | 270 | 19% |
| 10 | BROOKS KUSHMAN P.C. | 302 | 473 | -36% |
| 11 | DICKINSON WRIGHT PLLC | 285 | 255 | 12% |
| 12 | NIXON & VANDERHYE P.C. | 270 | 230 | 17% |
| 13 | KNOBBE MARTENS OLSON & BEAR LLP | 258 | 406 | -36% |
| 14 | MICHAEL BEST & FRIEDRICH LLP | 255 | 250 | 2% |
| 15 | KILPATRICK TOWNSEND & STOCKTON LLP | 248 | 306 | -19% |
| 16 | NORTON ROSE FULBRIGHT | 243 | 279 | -13% |
| 17 | PRICE HENEVELD LLP | 238 | 261 | -9% |
| 18 | DORITY & MANNING P.A. | 235 | 275 | -15% |
| 19 | MCCOY RUSSELL LLP | 218 | 147 | 48% |
| 20 | BIRCH STEWART KOLACH & BIRCH LLP | 210 | 250 | -16% |
| 21 | BARNES & THORNBURG LLP | 207 | 236 | -12% |
| 22 | RANKIN HILL & CLARK LLP | 205 | 202 | 1% |
| 23 | GLOBAL IP COUNCELORS LLP | 204 | 162 | 26% |
| 24 | CROWELL & MORING LLP | 199 | 268 | -26% |
| 25 | WOMBLE BOND DICKINSON (US) LLP | 196 | 159 | 23% |
| 26 | CARLSON GASKEY & OLDS. P.C. | 185 | 159 | 16% |
| 27 | BEJIN BIENEMAN PLC | 181 | 236 | -23% |
| 28 | BUCHANAN INGERSOLL & ROONEY P.C | 180 | 222 | -19% |
| 29 | MUNCY GEISSLER OLDS & LOWE P.C. | 171 | 211 | -19% |
| 30 | MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP | 170 | 195 | -13% |
| 31 | SCHWEGMAN LUNDBERG & WOESSNER P.A. | 168 | 166 | 1% |
| 32 | SNELL & WILMER L.L.P. | 165 | 201 | -18% |
| 33 | AMIN TUROCY & WATSON LLP | 163 | 128 | 27% |
| 34 | WENDEROTH LIND & PONACK L.L.P. | 160 | 184 | -13% |
| 35 | MASCHOFF BRENNAN | 158 | 130 | 22% |
| 36 | GREENBLUM & BERNSTEIN P.L.C. | 149 | 205 | -27% |
| 37 | FAEGRE DRINKER BIDDLE & REATH LLP | 144 | 190 | -24% |
| 37 | MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC | 144 | 165 | -13% |
| 39 | STUDEBAKER & BRACKETT PC | 140 | 133 | 5% |
| 40 | BAKER BOTTS L.L.P | 136 | 149 | -9% |
| 40 | HAUPTMAN HAM LLP | 136 | 128 | 6% |
| 40 | TAFT STETTININUS & HOLLISTER LLP | 136 | 167 | -19% |
| 43 | PERKINS COIE LLP | 135 | 110 | 23% |
| 43 | WORKMAN NYDEGGER | 135 | 126 | 7% |
| 45 | THE WEBB LAW FIRM | 133 | 151 | -12% |
| 46 | LEYDIG VOIT & MAYER LTD | 130 | 115 | 13% |
| 46 | MAIER & MAIER PLLC | 130 | 110 | 18% |
| 48 | HAYNES AND BOONE LLP | 129 | 153 | -16% |
| 48 | JCIPRNET | 129 | 155 | -17% |
| 50 | ALSTON & BIRD LLP | 125 | 120 | 4% |
| 51 | BRACEWELL LLP | 124 | 127 | -2% |
| 52 | WESTERMAN HATTORI DANIELS & ADRIAN LLP | 123 | 117 | 5% |
| 53 | FINNEGAN HENDERSON FARABOW GARRETT & DUNNER LLP | 122 | 131 | -7% |
| 54 | LEE & HAYES PLLC | 119 | 114 | 4% |
| 55 | RENNER OTTO BOISSELLE & SKLAR LLP | 116 | 108 | 7% |
| 56 | VENABLE LLP | 115 | 120 | -4% |
| 56 | VOLPE & KOENIG P.C. | 115 | 123 | -7% |
| 58 | PATTERSON & SHERIDAN LLP. | 114 | 134 | -15% |
| 58 | QUINN IP LAW | 114 | 95 | 20% |
| 60 | POLSINELLI LLP | 112 | 104 | 8% |
| 60 | SUITER SWANTZ PC LLO | 112 | 63 | 78% |
| 62 | YOUNG BASILE HANLON & MACFARLANE P.C. | 111 | 141 | -21% |
| 63 | ARMSTRONG TEASDALE LLP | 110 | 94 | 17% |
| 63 | QUARLES & BRADY LLP | 110 | 93 | 18% |
| 65 | GREER BURNS & CRAIN LTD. | 109 | 109 | 0% |
| 66 | EVERSHEDS SUTHERLAND (US) LLP | 108 | 98 | 10% |
| 66 | SHERIDAN ROSS P.C. | 108 | 108 | 0% |
| 68 | MERCHANT & GOULD P.C. | 107 | 130 | -18% |
| 69 | HANLEY FLIGHT & ZIMMERMAN LLC | 105 | 115 | -9% |
| 70 | C. TUMEY LAW GROUP PLLC | 104 | 82 | 27% |
| 71 | BAKER & HOSTETLER LLP | 103 | 155 | -34% |
| 72 | LORENZ & KOPF LLP | 102 | 146 | -30% |
| 73 | BRINKS GILSON & LIONE | 101 | 142 | -29% |
| 74 | MARSHALL GERSTEIN & BORUN LLP | 99 | 97 | 2% |
| 75 | ANDRUS INTELLECTUAL PROPERTY LAW LLP | 96 | 77 | 25% |
| 75 | CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC | 96 | 80 | 20% |
| 75 | OSHA BERGMAN WATANABE & BURTON LLP | 96 | 110 | -13% |
| 75 | TAROLLI SUNDHEIM COVELL & TUMMINO L.L.P. | 96 | 68 | 41% |
| 79 | THE SMALL PATENT LAW GROUP LLC | 95 | 102 | -7% |
| 80 | ANOVA LAW GROUP PLLC | 94 | 72 | 31% |
| 80 | FITCH EVEN TABIN & FLANNERY LLP | 94 | 134 | -30% |
| 82 | CONLEY ROSE P.C. | 93 | 77 | 21% |
| 83 | LADAS & PARRY LLP | 90 | 64 | 41% |
| 84 | HOWARD & HOWARD ATTORNEYS PLLC | 88 | 73 | 21% |
| 85 | BANNER & WITCOFF LTD | 87 | 120 | -28% |
| 85 | BAYRAMOGLU LAW OFFICES LLC | 87 | 52 | 67% |
| 87 | TROUTMAN PEPPER | 86 | 74 | 16% |
| 88 | MARSHALL & MELHORN LLC | 85 | 74 | 15% |
| 89 | CARRIER BLACKMAN & ASSOCIATES P.C. | 84 | 53 | 58% |
| 90 | RATNERPRESTIA | 83 | 112 | -26% |
| 91 | LOCKE LORD LLP | 82 | 79 | 4% |
| 91 | REISING ETHINGTON P.C. | 82 | 111 | -26% |
| 91 | WOLF GREENFIELD & SACKS P.C. | 82 | 77 | 6% |
| 94 | HONIGMAN MILLER SCHWARTZ & COHN LLP | 81 | 101 | -20% |
| 95 | ARENT FOX LLP | 80 | 69 | 16% |
| 96 | LEMPIA SUMMERFIELD KATZ LLC | 79 | 75 | 5% |
| 96 | MAGINOT MOORE & BECK LLP | 79 | 81 | -2% |
| 98 | FINCH & MALONEY PLLC | 77 | 26 | 196% |
| 98 | WESTMAN CHAMPLIN & KOEHLER P.A. | 77 | 102 | -25% |
| 100 | DORSEY & WHITNEY LLP | 76 | 86 | -12% |
| 101 | SLATER MATSIL | 75 | 73 | 3% |
| 102 | ALLEMAN HALL CREASMAN & TUTTLE LLP | 73 | 80 | -9% |
| 102 | DARROW MUSTAFA PC | 73 | 83 | -12% |
| 102 | SEED INTELLECTUAL PROPERTY LAW GROUP | 73 | 87 | -16% |
| 102 | WOOD HERRON & EVANS LLP | 73 | 95 | -23% |
| 106 | COLLARD & ROE P. C. | 71 | 57 | 25% |
| 106 | SCHMEISER OLSEN & WATTS LLP | 71 | 89 | -20% |
| 108 | FISHERBROYLES LLP | 70 | 47 | 49% |
| 108 | GREENBERG TRAURIG LLP | 70 | 85 | -18% |
| 108 | MCDERMOTT WILL & EMERY LLP | 70 | 75 | -7% |
| 108 | PROCOPIO CORY HARGREAVES & SAVITCH LLP | 70 | 32 | 119% |
| 112 | BOTOS CHURCHILL IP LAW LLP | 68 | 69 | -1% |
| 113 | BLANK ROME LLP | 67 | 61 | 10% |
| 113 | FISHMAN STEWART PLLC | 67 | 53 | 26% |
| 113 | MAYER & WILLIAMS PC | 67 | 76 | -12% |
| 113 | PEARNE & GORDON LLP | 67 | 86 | -22% |
| 117 | K&L GATES LLP | 66 | 70 | -6% |
| 117 | KEATING & BENNETT LLP | 66 | 76 | -13% |
| 119 | STERNE KESSLER GOLDSTEIN & FOX P.L.L.C. | 64 | 50 | 28% |
| 120 | COZEN O'CONNOR | 63 | 62 | 2% |
| 120 | J-TEK LAW PLLC | 63 | 29 | 117% |
| 120 | NELSON MULLINS RILEY & SCARBOROUGH LLP | 63 | 66 | -5% |
| 123 | POSZ LAW GROUP PLC | 62 | 66 | -6% |
| 123 | XSENSUS LLP | 62 | 43 | 44% |
| 125 | LERNER DAVID LITTENBERG KRUMHOLZ & MENTLIK LLP | 61 | 61 | 0% |
| 125 | MORI & WARD LLP | 61 | 86 | -29% |
| 125 | THOMAS HORSTEMEYER LLP | 61 | 70 | -13% |
| 128 | FENWICK & WEST LLP | 59 | 84 | -30% |
| 128 | GARCIA-ZAMOR IP LAW | 59 | 55 | 7% |
| 128 | SCULLY SCOTT MURPHY & PRESSER PC | 59 | 52 | 13% |
| 128 | SHACKELFORD BOWEN MCKINLEY & NORTON LLP | 59 | 14 | 321% |
| 128 | SHEPPARD MULLIN RICHTER & HAMPTON LLP | 59 | 53 | 11% |
| 133 | MCGUIREWOODS LLP | 58 | 66 | -12% |
| 134 | THYSSENKRUPP NORTH AMERICA INC. | 56 | 60 | -7% |
| 135 | BURRIS LAW PLLC | 55 | 64 | -14% |
| 135 | DLA PIPER LLP | 55 | 38 | 45% |
| 135 | NOVICK KIM & LEE PLLC | 55 | 44 | 25% |
| 135 | PATENT PORTFOLIO BUILDERS PLLC | 55 | 52 | 6% |
| 135 | SAND & SEBOLT LPA | 55 | 41 | 34% |
| 135 | SHUMAKER LOOP & KENDRICK LLP | 55 | 50 | 10% |
| 141 | JENKINS WILSON TAYLOR & HUNT P.A. | 54 | 51 | 6% |
| 141 | LEASON ELLIS LLP | 54 | 40 | 35% |
| 141 | MIDDLETON REUITLINGER | 54 | 43 | 26% |
| 141 | PERMAN & GREEN LLP | 54 | 57 | -5% |
| 145 | CARTER DELUCA FARRELL & SCHMIDT LLP | 53 | 47 | 13% |
| 145 | CLEMENTS BERNARD WALKER PLLC | 53 | 53 | 0% |
| 145 | MATTINGLY & MALUR PC | 53 | 45 | 18% |
| 145 | PATTERSON INTELLECTUAL PROPERTY LAW P.C. | 53 | 45 | 18% |
| 149 | FLETCHER YODER P.C. | 52 | 72 | -28% |
| 149 | KLINTWORTH & ROZENBLAT IP LLC | 52 | 47 | 11% |
| 149 | LAWRENCE YOUST PLLC | 52 | 53 | -2% |
| 152 | HESLIN ROTHENBERG FARLEY & MESITI P.C. | 51 | 46 | 11% |
| 152 | LEWIS ROCA ROTHGERBER CHRISTIE LLP | 51 | 60 | -15% |
| 152 | TRASKBRITT P.C. | 51 | 69 | -26% |
| 152 | WARNER NORCROSS & JUDD LLP | 51 | 66 | -23% |
| 156 | CHAMBERLAIN HRDLICKA | 50 | 59 | -15% |
| 156 | DENTONS | 50 | 39 | 28% |
| 156 | FOX ROTHSCHILD LLP | 50 | 45 | 11% |
| 156 | HAMRE SCHUMANN MUELLER & LARSON P.C. | 50 | 63 | -21% |
| 156 | HUNTON ANDREWS KURTH LLP | 50 | 82 | -39% |
| 156 | VAN PELT YI & JAMES LLP | 50 | 43 | 16% |
If you have any questions about the Top Patent Firms list, or any other patent analytics related questions, feel free to contact:
Rocky Berndsen
Head of Patent Analytics
rberndsen@harrityllp.com