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 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.
| Rank - Overall | Law Firm Name | 2021 Patents | 2020 Patents | YoY Difference |
|---|---|---|---|---|
| 1 | OBLON MCCLELLAND MAIER & NEUSTADT L.L.P. | 870 | 1092 | -20% |
| 2 | BIRCH STEWART KOLACH & BIRCH LLP | 838 | 874 | -4% |
| 3 | SUGHRUE MION PLC | 685 | 729 | -6% |
| 4 | CANTOR COLBURN LLP | 562 | 646 | -13% |
| 5 | OLIFF PLC | 553 | 624 | -11% |
| 6 | LERNER DAVID LITTENBERG KRUMHOLZ & MENTLIK LLP | 387 | 408 | -5% |
| 7 | FOLEY & LARDNER LLP | 385 | 421 | -9% |
| 8 | FISH & RICHARDSON P.C. | 367 | 277 | 32% |
| 9 | MORGAN LEWIS & BOCKIUS LLP | 328 | 375 | -13% |
| 10 | HARNESS IP | 327 | 354 | -8% |
| 11 | WESTERMAN HATTORI DANIELS & ADRIAN LLP | 305 | 282 | 8% |
| 12 | GREENBLUM & BERNSTEIN P.L.C. | 284 | 267 | 6% |
| 13 | DORITY & MANNING P.A. | 281 | 240 | 17% |
| 14 | WENDEROTH LIND & PONACK L.L.P. | 275 | 250 | 10% |
| 15 | DINSMORE & SHOHL LLP | 269 | 218 | 23% |
| 16 | LEWIS ROCA ROTHGERBER CHRISTIE LLP | 240 | 224 | 7% |
| 17 | KNOBBE MARTENS OLSON & BEAR LLP | 238 | 311 | -23% |
| 18 | FAEGRE DRINKER BIDDLE & REATH LLP | 234 | 233 | 0% |
| 19 | OSHA BERGMAN WATANABE & BURTON LLP | 222 | 135 | 64% |
| 20 | KILPATRICK TOWNSEND & STOCKTON LLP | 219 | 282 | -22% |
| 21 | FINNEGAN HENDERSON FARABOW GARRETT & DUNNER LLP | 218 | 201 | 8% |
| 22 | JCIPRNET | 212 | 234 | -9% |
| 23 | BUCHANAN INGERSOLL & ROONEY P.C | 203 | 223 | -9% |
| 24 | PATTERSON & SHERIDAN LLP. | 196 | 193 | 2% |
| 25 | NIXON & VANDERHYE P.C. | 194 | 173 | 12% |
| 26 | DENTONS | 190 | 247 | -23% |
| 26 | MUNCY GEISSLER OLDS & LOWE P.C. | 190 | 176 | 8% |
| 28 | MCDERMOTT WILL & EMERY LLP | 189 | 204 | -7% |
| 29 | RATNERPRESTIA | 181 | 141 | 28% |
| 30 | K&L GATES LLP | 174 | 146 | 19% |
| 31 | VENABLE LLP | 171 | 180 | -5% |
| 32 | THE WEBB LAW FIRM | 167 | 199 | -16% |
| 33 | DICKINSON WRIGHT PLLC | 160 | 150 | 7% |
| 34 | BROOKS KUSHMAN P.C. | 156 | 170 | -8% |
| 35 | LEYDIG VOIT & MAYER LTD | 151 | 152 | -1% |
| 36 | BAKER & HOSTETLER LLP | 142 | 176 | -19% |
| 36 | WOLF GREENFIELD & SACKS P.C. | 142 | 129 | 10% |
| 38 | MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC | 141 | 141 | 0% |
| 39 | THORPE NORTH & WESTERN LLP | 138 | 131 | 5% |
| 40 | ARMSTRONG TEASDALE LLP | 136 | 125 | 9% |
| 40 | MERCHANT & GOULD P.C. | 136 | 159 | -14% |
| 42 | PILLSBURY WINTHORP SHAW PITTMAN LLP | 130 | 140 | -7% |
| 43 | PEARNE & GORDON LLP | 128 | 145 | -12% |
| 44 | HAMRE SCHUMANN MUELLER & LARSON P.C. | 127 | 127 | 0% |
| 45 | CROWELL & MORING LLP | 126 | 86 | 47% |
| 46 | GREER BURNS & CRAIN LTD. | 124 | 103 | 20% |
| 46 | MARSHALL GERSTEIN & BORUN LLP | 124 | 122 | 2% |
| 46 | WOMBLE BOND DICKINSON (US) LLP | 124 | 154 | -19% |
| 49 | MICHAEL BEST & FRIEDRICH LLP | 121 | 90 | 34% |
| 50 | KENJA IP LAW PC | 120 | 139 | -14% |
| 51 | MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP | 119 | 118 | 1% |
| 51 | STUDEBAKER & BRACKETT PC | 119 | 148 | -20% |
| 51 | THOMAS HORSTEMEYER LLP | 119 | 78 | 53% |
| 54 | BURR & BROWN PLLC | 118 | 129 | -9% |
| 55 | FITCH EVEN TABIN & FLANNERY LLP | 116 | 145 | -20% |
| 55 | RANKIN HILL & CLARK LLP | 116 | 119 | -3% |
| 57 | BRACEWELL LLP | 114 | 83 | 37% |
| 58 | ARENT FOX LLP | 112 | 91 | 23% |
| 58 | LOCKE LORD LLP | 112 | 128 | -13% |
| 60 | BARNES & THORNBURG LLP | 111 | 131 | -15% |
| 60 | MILLEN WHITE ZELANO & BRANIGAN P.C. | 111 | 161 | -31% |
| 62 | NATH GOLDBERG & MEYER | 110 | 104 | 6% |
| 62 | SNELL & WILMER L.L.P. | 110 | 127 | -13% |
| 64 | DLA PIPER LLP | 108 | 127 | -15% |
| 64 | NORTON ROSE FULBRIGHT | 108 | 173 | -38% |
| 66 | ROTHWELL FIGG ERNST & MANBECK P.C. | 101 | 119 | -15% |
| 67 | BAKER BOTTS L.L.P | 100 | 121 | -17% |
| 67 | DUANE MORRIS LLP | 100 | 97 | 3% |
| 69 | PERKINS COIE LLP | 98 | 67 | 46% |
| 69 | POLSINELLI LLP | 98 | 102 | -4% |
| 71 | OSTROLENK FABER LLP | 97 | 131 | -26% |
| 72 | HAUPTMAN HAM LLP | 96 | 124 | -23% |
| 73 | MUETING RAASCH GROUP | 94 | 67 | 40% |
| 73 | NOVICK KIM & LEE PLLC | 94 | 93 | 1% |
| 75 | SCHWEGMAN LUNDBERG & WOESSNER P.A. | 88 | 105 | -16% |
| 76 | EVERSHEDS SUTHERLAND (US) LLP | 85 | 99 | -14% |
| 76 | GRUNEBERG AND MYERS PLLC | 85 | 35 | 143% |
| 76 | TROUTMAN PEPPER | 85 | 91 | -7% |
| 79 | BAYRAMOGLU LAW OFFICES LLC | 84 | 62 | 35% |
| 79 | CARLSON GASKEY & OLDS. P.C. | 84 | 87 | -3% |
| 79 | SCIENBIZIP P.C. | 84 | 87 | -3% |
| 82 | MEUNIER CARLIN & CURFMAN LLC | 83 | 63 | 32% |
| 82 | WORKMAN NYDEGGER | 83 | 86 | -3% |
| 84 | AMIN TUROCY & WATSON LLP | 81 | 61 | 33% |
| 84 | BANNER & WITCOFF LTD | 81 | 85 | -5% |
| 84 | SEED INTELLECTUAL PROPERTY LAW GROUP | 81 | 93 | -13% |
| 87 | RENNER OTTO BOISSELLE & SKLAR LLP | 80 | 94 | -15% |
| 88 | GREENBERG TRAURIG LLP | 79 | 66 | 20% |
| 89 | ABELMAN FRAYNE & SCHWAB | 78 | 71 | 10% |
| 89 | HAYNES AND BOONE LLP | 78 | 73 | 7% |
| 91 | MAIER & MAIER PLLC | 77 | 60 | 28% |
| 92 | LUCAS & MERCANTI LLP | 76 | 79 | -4% |
| 92 | MYERS BIGEL P.A. | 76 | 69 | 10% |
| 94 | LORENZ & KOPF LLP | 74 | 75 | -1% |
| 94 | NIXON & PEABODY LLP | 74 | 107 | -31% |
| 96 | QUARLES & BRADY LLP | 73 | 106 | -31% |
| 97 | GLOBAL IP COUNCELORS LLP | 72 | 62 | 16% |
| 97 | VOLPE & KOENIG P.C. | 72 | 92 | -22% |
| 99 | ALSTON & BIRD LLP | 71 | 63 | 13% |
| 99 | PANITCH SCHWARZE BELISARIO & NADEL LLP | 71 | 91 | -22% |
| 99 | SHERIDAN ROSS P.C. | 71 | 87 | -18% |
| 99 | TAROLLI SUNDHEIM COVELL & TUMMINO L.L.P. | 71 | 72 | -1% |
| 103 | BLANK ROME LLP | 68 | 73 | -7% |
| 103 | MCGARRY BAIR PC | 68 | 98 | -31% |
| 105 | LEASON ELLIS LLP | 67 | 61 | 10% |
| 105 | LEE IP LAW PC | 67 | 106 | -37% |
| 105 | SCULLY SCOTT MURPHY & PRESSER PC | 67 | 83 | -19% |
| 108 | RABIN & BERDO P.C. | 66 | 70 | -6% |
| 109 | BRINKS GILSON & LIONE | 65 | 79 | -18% |
| 109 | DORSEY & WHITNEY LLP | 65 | 75 | -13% |
| 109 | VORYS SATER SEYMOUR & PEASE LLP | 65 | 70 | -7% |
| 112 | HONIGMAN MILLER SCHWARTZ & COHN LLP | 64 | 69 | -7% |
| 113 | CALFEE HALTER & GRISWOLD LLP | 63 | 55 | 15% |
| 113 | MCKEE VOORHEES & SEASE PLC | 63 | 66 | -5% |
| 113 | SLATER MATSIL | 63 | 42 | 50% |
| 116 | CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC | 62 | 47 | 32% |
| 116 | COZEN O'CONNOR | 62 | 48 | 29% |
| 116 | FISHERBROYLES LLP | 62 | 46 | 35% |
| 119 | RENNER KENNER GREIVE BOBAK TAYLOR & WEBER | 61 | 44 | 39% |
| 120 | FAY SHARPE LLP | 60 | 74 | -19% |
| 121 | MASCHOFF BRENNAN | 59 | 53 | 11% |
| 122 | QUINN IP LAW | 58 | 45 | 29% |
| 123 | STERNE KESSLER GOLDSTEIN & FOX P.L.L.C. | 57 | 32 | 78% |
| 124 | CONLEY ROSE P.C. | 56 | 76 | -26% |
| 124 | LOWENSTEIN & SANDLER LLP | 56 | 49 | 14% |
| 126 | KED & ASSOCIATES LLP | 54 | 69 | -22% |
| 126 | NORRIS MCLAUGHLIN P.A. | 54 | 66 | -18% |
| 128 | HP INC. PATENT DEPARTMENT | 53 | 44 | 20% |
| 128 | HUNTON ANDREWS KURTH LLP | 53 | 55 | -4% |
| 130 | KAGAN BINDER PLLC | 52 | 46 | 13% |
| 130 | MH2 TECHNOLOGY LAW GROUP LLP | 52 | 56 | -7% |
| 130 | STINSON LEONARD STREET LLP | 52 | 47 | 11% |
| 133 | BOZICEVIC FIELD & FRANCIS LLP | 51 | 59 | -14% |
| 133 | MOSER TABOADA | 51 | 52 | -2% |
| 135 | MATTINGLY & MALUR PC | 50 | 45 | 11% |
| 135 | WEAVER AUSTIN VILLENEUVE & SAMPSON LLP | 50 | 69 | -28% |
If you have any questions about the Top Patent Firms 2021 list, or any other patent analytics related questions, feel free to contact:
Rocky Berndsen
Head of Patent Analytics
rberndsen@harrityllp.com