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 2400. 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 | FISH & RICHARDSON P.C. | 1121 | 1052 | 7% |
| 2 | SUGHRUE MION PLC | 554 | 528 | 5% |
| 3 | KILPATRICK TOWNSEND & STOCKTON LLP | 498 | 571 | -13% |
| 4 | OBLON MCCLELLAND MAIER & NEUSTADT L.L.P. | 483 | 491 | -2% |
| 5 | SCHWEGMAN LUNDBERG & WOESSNER P.A. | 471 | 476 | -1% |
| 6 | LEYDIG VOIT & MAYER LTD | 400 | 453 | -12% |
| 7 | SLATER MATSIL | 389 | 449 | -13% |
| 8 | PERKINS COIE LLP | 383 | 218 | 76% |
| 9 | FOLEY & LARDNER LLP | 380 | 358 | 6% |
| 10 | KOWERT HOOD MUNYON RANKIN & GOETZEL P.C. | 360 | 399 | -10% |
| 10 | LEE HONG DEGERMAN KANG & WAIMEY | 360 | 502 | -28% |
| 12 | JEFFERSON IP LAW LLP | 353 | 334 | 6% |
| 13 | HOLLAND & HART LLP | 342 | 357 | -4% |
| 14 | WOMBLE BOND DICKINSON (US) LLP | 325 | 283 | 15% |
| 15 | DENTONS | 323 | 366 | -12% |
| 16 | BANNER & WITCOFF LTD | 319 | 331 | -4% |
| 17 | POLSINELLI LLP | 318 | 333 | -5% |
| 18 | XSENSUS LLP | 307 | 414 | -26% |
| 19 | KNOBBE MARTENS OLSON & BEAR LLP | 299 | 334 | -10% |
| 20 | PATTERSON & SHERIDAN LLP. | 296 | 327 | -9% |
| 21 | BAKER & HOSTETLER LLP | 287 | 290 | -1% |
| 22 | SHUMAKER & SIEFFERT P.A. | 274 | 285 | -4% |
| 23 | CONLEY ROSE P.C. | 272 | 303 | -10% |
| 24 | LEE & HAYES PLLC | 270 | 220 | 23% |
| 25 | FINNEGAN HENDERSON FARABOW GARRETT & DUNNER LLP | 265 | 323 | -18% |
| 26 | AMIN TUROCY & WATSON LLP | 258 | 304 | -15% |
| 27 | SEED INTELLECTUAL PROPERTY LAW GROUP | 241 | 262 | -8% |
| 28 | BIRCH STEWART KOLACH & BIRCH LLP | 235 | 407 | -42% |
| 28 | HANLEY FLIGHT & ZIMMERMAN LLC | 235 | 203 | 16% |
| 30 | MORGAN LEWIS & BOCKIUS LLP | 234 | 263 | -11% |
| 31 | GUNTIN & GUST PLC | 233 | 271 | -14% |
| 31 | QUALCOMM INCORPORATED | 233 | 88 | 165% |
| 33 | NICHOLSON DE VOS WEBSTER & ELLIOTT LLP | 230 | 198 | 16% |
| 34 | HALEY GUILIANO LLP | 213 | 178 | 20% |
| 35 | OSHA BERGMAN WATANABE & BURTON LLP | 208 | 142 | 46% |
| 36 | ARENT FOX LLP | 203 | 260 | -22% |
| 36 | NIXON & VANDERHYE P.C. | 203 | 180 | 13% |
| 38 | LADAS & PARRY LLP | 201 | 117 | 72% |
| 39 | CANTOR COLBURN LLP | 198 | 252 | -21% |
| 40 | HAYNES AND BOONE LLP | 197 | 183 | 8% |
| 41 | HARRITY & HARRITY LLP | 195 | 176 | 11% |
| 42 | THE FARRELL LAW FIRM P.C | 190 | 204 | -7% |
| 43 | HARNESS IP | 187 | 201 | -7% |
| 44 | WENDEROTH LIND & PONACK L.L.P. | 176 | 171 | 3% |
| 45 | CANON U.S.A. INC. IP DIVISION | 173 | 191 | -9% |
| 46 | SAGE PATENT GROUP | 172 | 220 | -22% |
| 47 | SCIENBIZIP P.C. | 168 | 175 | -4% |
| 48 | FENWICK & WEST LLP | 167 | 224 | -25% |
| 48 | MURPHY BILAK & HOMILLER PLLC | 167 | 172 | -3% |
| 50 | ADELI LLP | 166 | 148 | 12% |
| 50 | BAKER BOTTS L.L.P | 166 | 193 | -14% |
| 52 | EDELL SHAPIRO & FINNAN LLC | 164 | 157 | 4% |
| 52 | STERNE KESSLER GOLDSTEIN & FOX P.L.L.C. | 164 | 181 | -9% |
| 54 | FISHERBROYLES LLP | 160 | 175 | -9% |
| 55 | VOLPE & KOENIG P.C. | 154 | 167 | -8% |
| 56 | CHIP LAW GROUP | 153 | 183 | -16% |
| 57 | THOMAS HORSTEMEYER LLP | 151 | 132 | 14% |
| 58 | MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP | 149 | 142 | 5% |
| 59 | ANOVA LAW GROUP PLLC | 139 | 134 | 4% |
| 60 | FLETCHER YODER P.C. | 138 | 141 | -2% |
| 61 | GREENBLUM & BERNSTEIN P.L.C. | 134 | 140 | -4% |
| 62 | GREENBERG TRAURIG LLP | 131 | 137 | -4% |
| 63 | DAVIS WRIGHT TREMAINE LLP | 129 | 164 | -21% |
| 63 | MASCHOFF BRENNAN | 129 | 130 | -1% |
| 63 | VAN PELT YI & JAMES LLP | 129 | 165 | -22% |
| 66 | LOWENSTEIN & SANDLER LLP | 128 | 181 | -29% |
| 67 | RYAN MASON & LEWIS LLP | 125 | 109 | 15% |
| 67 | WORKMAN NYDEGGER | 125 | 129 | -3% |
| 69 | BEHMKE INNOVATION GROUP LLC | 123 | 146 | -16% |
| 70 | NORTON ROSE FULBRIGHT | 111 | 113 | -2% |
| 71 | COATS & BENNETT P.L.L.C. | 109 | 126 | -13% |
| 72 | OLIFF PLC | 108 | 103 | 5% |
| 73 | JCIPRNET | 106 | 108 | -2% |
| 73 | SHEPPARD MULLIN RICHTER & HAMPTON LLP | 106 | 201 | -47% |
| 75 | MERCHANT & GOULD P.C. | 104 | 153 | -32% |
| 76 | HARRINGTON & SMITH | 103 | 96 | 7% |
| 77 | ALSTON & BIRD LLP | 102 | 115 | -11% |
| 78 | HONIGMAN MILLER SCHWARTZ & COHN LLP | 101 | 107 | -6% |
| 79 | KUNZLER BEAN & ADAMSON | 100 | 93 | 8% |
| 80 | HEWLETT PACKARD ENTERPRISE DEVELOPMENT PATENT DEPARTMENT | 97 | 175 | -45% |
| 81 | BUCHANAN INGERSOLL & ROONEY P.C | 96 | 107 | -10% |
| 82 | KACVINSKY DAISAK BLUNI PLLC | 95 | 1 | 9400% |
| 83 | WESTMAN CHAMPLIN & KOEHLER P.A. | 93 | 87 | 7% |
| 84 | NSIP LAW | 92 | 84 | 10% |
| 85 | PROCOPIO CORY HARGREAVES & SAVITCH LLP | 90 | 70 | 29% |
| 85 | SCHMEISER OLSEN & WATTS LLP | 90 | 113 | -20% |
| 87 | SHOOK HARDY & BACON L.L.P. | 88 | 106 | -17% |
| 87 | WITHROW & TERRANOVA P.L.L.C. | 88 | 92 | -4% |
| 89 | MOORE & VAN ALLEN PLLC | 86 | 81 | 6% |
| 89 | TROUTMAN PEPPER | 86 | 76 | 13% |
| 89 | YOUNG BASILE HANLON & MACFARLANE P.C. | 86 | 104 | -17% |
| 92 | HESLIN ROTHENBERG FARLEY & MESITI P.C. | 85 | 88 | -3% |
| 92 | SQUIRE PATTON BOGGS LLP | 85 | 100 | -15% |
| 94 | BYRNE POH LLP | 84 | 69 | 22% |
| 94 | CHRISTOPHER & WEISBERG P.A. | 84 | 41 | 105% |
| 96 | SCULLY SCOTT MURPHY & PRESSER PC | 82 | 122 | -33% |
| 97 | KLARQUIST SPARKMAN LLP | 81 | 104 | -22% |
| 98 | MCDERMOTT WILL & EMERY LLP | 80 | 86 | -7% |
| 99 | EVERSHEDS SUTHERLAND (US) LLP | 79 | 64 | 23% |
| 99 | JAFFERY WATSON MENDONSA & HAMILTON LLC | 79 | 85 | -7% |
| 99 | ROBERTS CALDERON SAFRAN & COLE P.C. | 79 | 69 | 14% |
| 102 | MCCLURE QUALEY & RODACK LLP | 78 | 83 | -6% |
| 103 | FUJITSU PATENT CENTER | 77 | 103 | -25% |
| 104 | HODGSON RUSS LLP | 76 | 32 | 138% |
| 104 | WOLF GREENFIELD & SACKS P.C. | 76 | 68 | 12% |
| 106 | LORENZ & KOPF LLP | 75 | 73 | 3% |
| 107 | SPRINKLE IP LAW GROUP | 74 | 73 | 1% |
| 108 | LOZA & LOZA LLP | 73 | 117 | -38% |
| 109 | ARTEGIS LAW GROUP LLP | 72 | 77 | -6% |
| 109 | DLA PIPER LLP | 72 | 58 | 24% |
| 109 | LOCKE LORD LLP | 72 | 100 | -28% |
| 112 | CHERNOFF VILHAUER MCCLUNG & STENZEL LLP | 71 | 69 | 3% |
| 112 | ROTHWELL FIGG ERNST & MANBECK P.C. | 71 | 87 | -18% |
| 112 | STUDEBAKER & BRACKETT PC | 71 | 114 | -38% |
| 112 | TUCKER ELLIS LLP | 71 | 98 | -28% |
| 116 | PILLSBURY WINTHORP SHAW PITTMAN LLP | 70 | 150 | -53% |
| 116 | SHERIDAN ROSS P.C. | 70 | 75 | -7% |
| 118 | MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC | 68 | 62 | 10% |
| 119 | KLIGLER & ASSOCIATES | 67 | 67 | 0% |
| 120 | ESCHWEILER & POTASHNIK LLC | 66 | 44 | 50% |
| 120 | MICHAEL BEST & FRIEDRICH LLP | 66 | 103 | -36% |
| 122 | COOPER LEGAL GROUP LLC | 64 | 61 | 5% |
| 123 | PARATUS LAW GROUP PLLC | 63 | 79 | -20% |
| 123 | PATENT PORTFOLIO BUILDERS PLLC | 63 | 83 | -24% |
| 125 | NEWPORT IP LLC | 62 | 40 | 55% |
| 126 | MUNCY GEISSLER OLDS & LOWE P.C. | 61 | 84 | -27% |
| 127 | CROWELL & MORING LLP | 60 | 38 | 58% |
| 127 | HAUPTMAN HAM LLP | 60 | 59 | 2% |
| 129 | BOOKOFF MCANDREWS LLC | 59 | 63 | -6% |
| 129 | BRAKE HUGHES BELLERMAN LLP | 59 | 74 | -20% |
| 129 | CHAMBERLAIN HRDLICKA | 59 | 44 | 34% |
| 129 | CLEMENTS BERNARD WALKER PLLC | 59 | 60 | -2% |
| 129 | COMPASS IP LAW | 59 | 50 | 18% |
| 129 | ESPLIN & ASSOCIATES PC | 59 | 63 | -6% |
| 129 | HUNTON ANDREWS KURTH LLP | 59 | 68 | -13% |
| 136 | CONDO ROCCIA KOPTIW LLP | 58 | 48 | 21% |
| 136 | KEATING & BENNETT LLP | 58 | 71 | -18% |
| 136 | LERNER DAVID LITTENBERG KRUMHOLZ & MENTLIK LLP | 58 | 72 | -19% |
| 139 | FOUNTAINHEAD LAW GROUP P.C. | 57 | 46 | 24% |
| 139 | VENABLE LLP | 57 | 68 | -16% |
| 141 | MAIER & MAIER PLLC | 56 | 17 | 229% |
| 141 | PATTERSON THUENTE PEDERSEN P.A. | 56 | 54 | 4% |
| 143 | GRIFFITHS & SEATON PLLC | 54 | 37 | 46% |
| 144 | CLAYTON MCKAY & BAILEY PC | 53 | 33 | 61% |
| 144 | CUENOT FORSYTHE & KIM LLC | 53 | 54 | -2% |
| 146 | MARSHALL GERSTEIN & BORUN LLP | 52 | 59 | -12% |
| 146 | MATTINGLY & MALUR PC | 52 | 60 | -13% |
| 146 | MCANDREWS HELD & MALLOY LTD. | 52 | 47 | 11% |
| 146 | ZILKA-KOTAB P.C. | 52 | 43 | 21% |
| 150 | GAZDZINSKI & ASSOCIATES PC | 51 | 43 | 19% |
| 151 | FIALA & WEAVER P.L.L.C. | 50 | 38 | 32% |
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