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 2800. 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 | FIRM NAME | PATENTS |
|---|---|---|
| 1 | OBLON MCCLELLAND, MAIER & NEUSTADT, L.L.P. | 1776 |
| 2 | CANTOR COLBURN LLP | 1145 |
| 3 | SUGHRUE MION, PLC | 1108 |
| 4 | SLATER & MATSIL, LLP | 1107 |
| 5 | HARNESS, DICKEY & PIERCE P.L.C. | 1106 |
| 6 | OLIFF PLC | 1040 |
| 7 | MCDERMOTT WILL & EMERY LLP | 900 |
| 8 | FISH & RICHARDSON P.C. | 757 |
| 9 | BIRCH STEWART KOLACH & BIRCH, LLP | 738 |
| 10 | MUNCY, GEISSLER, OLDS & LOWE P.C. | 676 |
| 11 | JCIPRNET | 647 |
| 12 | FITZPATRICK, CELLA, HARPER & SCINTO | 569 |
| 13 | PATTERSON & SHERIDAN, LLP. | 552 |
| 14 | KILPATRICK TOWNSEND & STOCKTON LLP | 530 |
| 15 | KNOBBE MARTENS OLSON & BEAR LLP | 529 |
| 16 | HAYNES & BOONE, LLP | 525 |
| 17 | FOLEY & LARDNER LLP | 513 |
| 18 | KEATING & BENNETT, LLP | 494 |
| 19 | STUDEBAKER & BRACKETT PC | 450 |
| 20 | MCCLURE, QUALEY & RODACK, LLP | 408 |
| 21 | CANON U.S.A. INC. IP DIVISION | 406 |
| 22 | SCULLY, SCOTT, MURPHY & PRESSER, PC | 400 |
| 23 | TUTUNJIAN & BITETTO, P.C. | 371 |
| 23 | SEED INTELLECTUAL PROPERTY LAW GROUP | 371 |
| 25 | SCHWEGMAN LUNDBERG & WOESSNER, P.A. | 368 |
| 26 | MERCHANT & GOULD P.C. | 354 |
| 27 | MICHAEL BEST & FRIEDRICH LLP | 348 |
| 28 | BANNER & WITCOFF, LTD | 347 |
| 29 | RABIN & BERDO, P.C. | 337 |
| 30 | MORGAN LEWIS & BOCKIUS LLP | 333 |
| 31 | PERKINS COIE LLP | 330 |
| 32 | HAUPTMAN HAM LLP | 315 |
| 33 | WORKMAN NYDEGGER | 311 |
| 34 | FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER LLP | 309 |
| 35 | VOLPE & KOENIG, P.C. | 301 |
| 36 | WPAT, P.C., INTELLECTUAL PROPERTY ATTORNEYS | 300 |
| 37 | F. CHAU & ASSOCIATES, LLC | 292 |
| 38 | NORTON ROSE FULBRIGHT | 288 |
| 39 | MYERS BIGEL, P.A. | 282 |
| 39 | GREENBLUM & BERNSTEIN P.L.C. | 282 |
| 41 | MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC | 276 |
| 42 | LEE & MORSE P.C. | 268 |
| 43 | SCHWABE, WILLIAMSON & WYATT, P.C. | 267 |
| 44 | WOLF, GREENFIELD & SACKS, P.C. | 265 |
| 45 | MURPHY, BILAK & HOMILLER, PLLC | 261 |
| 46 | BROOKS KUSHMAN, P.C. | 260 |
| 47 | NSIP LAW | 257 |
| 47 | LEWIS ROCA ROTHGERBER CHRISTIE LLP | 257 |
| 47 | ESCHWEILER & POLASHNIK, LLC | 257 |
| 47 | BRINKS GILSON & LIONE | 257 |
| 51 | WILLIAM PARK & ASSOCIATES LTD. | 256 |
| 51 | LOCKE LORD LLP | 256 |
| 53 | BUCHANAN INGERSOLL & ROONEY P.C | 253 |
| 54 | ROBERTS MLOTKOSKI SAFRAN COLE & CALDERON, P.C. | 252 |
| 55 | K&L GATES LLP | 250 |
| 56 | MASCHOFF BRENNAN | 249 |
| 56 | CROWELL & MORING LLP | 249 |
| 58 | WOMBLE BOND DICKINSON (US) LLP | 248 |
| 58 | LADAS & PARRY LLP | 248 |
| 60 | WESTERMAN, HATTORI, DANIELS & ADRIAN, LLP | 246 |
| 60 | HP INC. PATENT DEPARTMENT | 246 |
| 62 | H. C. PARK & ASSOCIATES, PLC | 245 |
| 63 | SCIENBIZIP, P.C. | 242 |
| 64 | IP & T GROUP LLP | 241 |
| 65 | PEARNE & GORDON LLP | 240 |
| 65 | NIXON & VANDERHYE P.C. | 240 |
| 67 | HOLTZ, HOLTZ & VOLEK PC | 239 |
| 68 | GE GLOBAL PATENT OPERATION | 231 |
| 68 | CKC & PARTNERS CO., LTD. | 231 |
| 70 | FENWICK & WEST LLP | 210 |
| 70 | ARENT FOX LLP | 210 |
| 72 | ANOVA LAW GROUP, PLLC | 209 |
| 73 | PILLSBURY WINTHORP SHAW PITTMAN, LLP | 208 |
| 74 | ROBINSON INTELLECTUAL PROPERTY LAW OFFICE | 204 |
| 75 | MCGINN IP LAW GROUP, PLLC | 201 |
| 76 | WITHROW & TERRANOVA, P.L.L.C. | 198 |
| 76 | INNOVATION COUNSEL LLP | 198 |
| 78 | DORSEY & WHITNEY LLP | 195 |
| 79 | OSHA LIANG LLP | 193 |
| 80 | HAMRE, SCHUMANN, MUELLER & LARSON, P.C. | 192 |
| 81 | AMIN, TUROCY & WATSON, LLP | 187 |
| 82 | RENNER OTTO BOISSELLE & SKLAR, LLP | 186 |
| 82 | POSZ LAW GROUP, PLC | 186 |
| 84 | WENDEROTH, LIND & PONACK, L.L.C. | 183 |
| 85 | SHAPIRO, GABOR AND ROSENBERGER, PLLC | 178 |
| 85 | NIXON & PEABODY LLP | 178 |
| 87 | YOUNG & THOMPSON | 176 |
| 88 | TYPHA IP LLC | 174 |
| 88 | DENTONS LLP | 174 |
| 90 | SCHIFF HARDIN LLP | 170 |
| 91 | DRINKER BIDDLE & REATH LLP | 168 |
| 92 | SHERIDAN ROSS P.C. | 166 |
| 93 | MUIR PATENT LAW, PLLC | 161 |
| 93 | MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP | 161 |
| 93 | DORITY & MANNING, P.A. | 161 |
| 96 | NATH GOLDBERG & MEYER | 160 |
| 97 | WESTMAN CHAMPLIN & KOEHER, P.A. | 155 |
| 97 | VIERING, JENTSCHURA & PARTNER MBB | 155 |
| 99 | LI & CAI INTELLECTUAL PROPERTY (USA) OFFICE | 150 |
| 100 | STERNE KESSLER GOLDSTEIN & FOX P.L.L.C. | 149 |
| 101 | TAFT STETTININUS & HOLLISTER LLP | 147 |
| 102 | KENEALY VAIDYA LLP | 146 |
| 103 | BAKER & HOSTETLER LLP | 145 |
| 104 | STAAS & HALSEY LLP | 144 |
| 104 | HESLIN ROTHENBERG FARLEY & MESITI P.C. | 144 |
| 106 | SHUMAKER & SIEFFERT, P.A. | 143 |
| 107 | MCANDREWS, HELD & MALLOY, LTD. | 142 |
| 108 | ROSSI, KIMMS & MCDOWELL LLP | 140 |
| 108 | LEYDIG, VOIT & MAYER, LTD | 140 |
| 110 | HOFFMAN WARNICK LLC | 139 |
| 111 | KED & ASSOCIATES LLP | 134 |
| 111 | DINSMORE & SHOHL LLP | 134 |
| 113 | SALIWANCHIK, LLOYD & EISENSCHENK | 132 |
| 114 | FLETCHER YODER P.C. | 131 |
| 115 | MAGINOT MOORE & BECK LLP | 130 |
| 116 | WELLS ST. JOHN P.S. | 129 |
| 116 | BACON & THOMAS PLLC | 129 |
| 118 | TAROLLI, SUNDHEIM, COVELL & TUMMINO L.L.P. | 128 |
| 118 | VOLENTINE, WHITT & FRANCOS, PLLC | 128 |
| 118 | MATTINGLY & MALUR, PC | 128 |
| 118 | CHIP LAW GROUP | 128 |
| 122 | QUARLES & BRADY LLP | 127 |
| 122 | RANKIN, HILL & CLARK LLP | 127 |
| 124 | TRASKBRITT P.C. | 125 |
| 125 | RATNERPRESTIA | 124 |
| 125 | LERNER, DAVID, LITTENBERG, KRUMHOLZ & MENTLIK, LLP | 124 |
| 125 | BAKER BOTTS L.L.P | 124 |
| 128 | HUSCH BLACKWELL LLP | 123 |
| 129 | PRICE HENEVELD LLP | 122 |
| 130 | DICKE, BILLIG & CJAZA, PLLC | 121 |
| 131 | IPRO, PLLC | 120 |
| 132 | TREYZ LAW GROUP, P.C. | 118 |
| 132 | KINNEY & LANGE, P.A. | 118 |
| 132 | LEMPIA SUMMERFIELD KATZ LLC | 118 |
| 135 | BROOKS CAMERON & HUEBSCH PLLC | 117 |
| 136 | DALY, CROWLEY MOFFORD & DURKEE, LLP | 116 |
| 136 | CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC | 116 |
| 138 | IPUSA, PLLC | 113 |
| 138 | ALSTON & BIRD LLP | 113 |
| 140 | PROCOPIO, CORY, HARGREAVES & SAVITCH, LLP | 111 |
| 140 | FUJITSU PATENT CENTER | 111 |
| 140 | ALLEMAN HALL CREASMAN & TUTTLE LLP | 111 |
| 143 | DLA PIPER LLP | 110 |
| 144 | THE WEBB LAW FIRM | 108 |
| 144 | GREER BURNS & CRAIN LTD. | 108 |
| 146 | POLSINELLI LLP | 107 |
| 146 | COOPER & DUNHAM LLP | 107 |
| 148 | MEYERTONS, HOOD, KIVLIN, KOWERT & GOETZEL, P.C. | 106 |
| 148 | MORI & WARD, LLP | 106 |
| 148 | CONLEY ROSE, P.C. | 106 |
| 151 | ARMSTRONG TEASDALE LLP | 104 |
| 151 | CHEN YOSHIMURA LLP | 104 |
| 153 | BLANK ROME LLP | 103 |
| 154 | DITTHAVONG & STEINER, P.C. | 102 |
| 155 | WARD AND SMITH, P.A. | 101 |
| 155 | HUNTON ANDREWS KURTH LLP | 101 |
| 157 | HOLLAND & HART LLP | 100 |
| 158 | THE MARBURY LAW GROUP | 99 |
| 159 | CROWE & DUNLEVY, P.C. | 98 |
| 160 | LUCAS & MERCANTI, LLP | 95 |
| 160 | LORENZ & KOPF LLP | 95 |
| 162 | WEAVER AUSTIN VILLENEUVE & SAMPSON LLP | 94 |
| 162 | RYAN, MASON & LEWIS, LLP | 94 |
| 162 | JONES DAY | 94 |
| 162 | COLLARD & ROE, P. C. | 94 |
| 166 | ROSENBERG, KLEIN & LEE | 93 |
| 166 | SAILE ACKERMAN LLC | 93 |
| 166 | DUANE MORRIS LLP | 93 |
| 169 | THOMAS HORSTEMEYER, LLP | 91 |
| 170 | VIERRA MAGEN MARCUS LLP | 90 |
| 170 | SNELL & WILMER L.L.P. | 90 |
| 170 | DICKINSON WRIGHT PLLC | 90 |
| 170 | AMERSON LAW FIRM, PLLC | 90 |
| 174 | MCCOY RUSSELL LLP | 89 |
| 174 | LANDO & ANASTASI, LLP | 89 |
| 176 | COZEN O'CONNOR | 88 |
| 176 | BARNES & THORNBURG LLP | 88 |
| 178 | CARTER, DELUCA, FARRELL & SCHMIDT, LLP | 87 |
| 179 | VENABLE LLP | 85 |
| 179 | SCHMEISER, OLSEN & WATTS, LLP | 85 |
| 179 | REISING ETHINGTON P.C. | 85 |
| 179 | CALFEE HALTER & GRISWOLD LLP | 85 |
| 183 | JEFFERSON IP LAW, LLP | 84 |
| 183 | J.C. PATENTS | 84 |
| 185 | SLAYDEN GRUBERT BEARD PLLC | 83 |
| 185 | KIRTON MCCONKIE, PC | 83 |
| 185 | KLARQUIST SPARKMAN, LLP | 83 |
| 188 | KRATZ, QUINTOS & HANSON, LLP | 82 |
| 189 | MARSHALL, GERSTEIN & BORUN LLP | 81 |
| 189 | EDELL, SHAPIRO & FINNAN LLC | 81 |
| 191 | MORRISON & FOERSTER LLP | 79 |
| 192 | RENAISSANCE IP LAW GROUP, LLP | 78 |
| 193 | METROLEXIS LAW GROUP, PLLC | 77 |
| 193 | COOPER LEGAL GROUP LLC | 77 |
| 193 | ECKERT SEAMANS CHERIN & MELLOTT, LLC | 77 |
| 196 | STEIN IP, LLC | 76 |
| 196 | BROWNSTEIN HYATT FARBER SCHRECK, LLP | 76 |
| 198 | HONIGMAN MILLER SCHWARTZ & COHN LLP | 75 |
| 198 | FAY SHARPE LLP | 75 |
| 200 | COOLEY LLP | 74 |
| 201 | KING & SPALDING LLP | 71 |
| 202 | BARLEY SNYDER | 70 |
| 203 | JACKSON WALKER L.L.P. | 69 |
| 203 | GARDERE WYNNE SEWELL LLP | 69 |
| 205 | THOMPSON HINE LLP | 68 |
| 205 | LATHROP & GAGE L.L.P. | 68 |
| 205 | BOYLE FREDRICKSON S.C. | 68 |
| 208 | HARRINGTON & SMITH | 67 |
| 208 | FITCH, EVEN, TABIN & FLANNERY LLP | 67 |
| 208 | BURR & BROWN, PLLC | 67 |
| 211 | LOZA & LOZA, LLP | 66 |
| 212 | THE FARRELL LAW FIRM, P.C | 65 |
| 212 | SUITER SWANTZ PC LLO | 65 |
| 212 | MARTINE PENILLA GROUP, LLP | 65 |
| 212 | GLOBAL IP COUNCELORS, LLP | 65 |
| 212 | HEWLETT PACKARD ENTERPRISE DEVELOPMENT PATENT DEPARTMENT | 65 |
| 217 | QUINN IP LAW | 64 |
| 217 | SEYFARTH SHAW LLP | 64 |
| 217 | JAQUEZ LAND GREENHAUS LLP | 64 |
| 217 | ADDITON, HIGGINS & PENDLETON, P.A. | 64 |
| 221 | FISHERBROYLES LLP | 63 |
| 222 | OSTROLENK FABER LLP | 62 |
| 222 | LEE & HAYES PLLC | 62 |
| 222 | HARRITY & HARRITY, LLP | 62 |
| 222 | GREEN, HOWARD & MUGHAL LLP | 62 |
| 222 | EVERSHEDS SUTHERLAND (US) LLP | 62 |
| 227 | SQUIRE PATTON BOGGS (US) LLP | 61 |
| 227 | KUNZIER LAW GROUP | 61 |
| 227 | HENRY M. FEIEREISEN LLC | 61 |
| 227 | FAEGRE BAKER DANIELS LLP | 61 |
| 231 | COMPASS IP LAW | 60 |
| 232 | HOVEY WILLIAMS LLP | 59 |
| 233 | SHUMAKER, LOOP & KENDRICK, LLP | 58 |
| 233 | HODGSON RUSS LLP | 58 |
| 235 | MAIER & MAIER, PLLC | 57 |
| 235 | FREDRIKSON & BYRON, P.A. | 57 |
| 235 | ALG INTELLECTUAL PROPERTY, LLC | 57 |
| 238 | WILMER CUTLER PICKERING HALE AND DORR LLP | 56 |
| 238 | HDLS IPR SERVICES | 56 |
| 238 | HANLEY FLIGHT & ZIMMERMAN, LLC | 56 |
| 241 | PANITCH SCHWARZE BELISARIO & NADEL LLP | 54 |
| 241 | KAMRATH IP LAWFIRM, P.A. | 54 |
| 241 | HOWARD & HOWARD ATTORNEYS PLLC | 54 |
| 241 | FLEIT GIBBONS GUTMAN BONGINI & BIANCO P.L. | 54 |
| 245 | LEASON ELLIS LLP | 53 |
| 245 | GIBB & RILEY, LLC | 53 |
| 245 | HAYES SOLOWAY P.C. | 53 |
| 245 | CARLSON, GAKSEY & OLDS. P.C. | 53 |
| 245 | ATKINS AND ASSOCIATES, P.C. | 53 |
| 245 | ANDREWS KURTH KENYON LLP | 53 |
| 251 | KUSNER & JAFFE | 52 |
| 252 | TOLER LAW GROUP, P.C. | 51 |
| 252 | WHITE & CASE LLP | 51 |
| 252 | THORPE NORTH & WESTERN LLP | 51 |
| 252 | PATTERSON, THUENTE, PEDERSEN, P.A. | 51 |
| 252 | HOFFMANN & BARON, LLP | 51 |
| 252 | BRAKE HUGHES BELLERMAN LLP | 51 |
| 258 | WOOD HERRON & EVANS LLP | 50 |
| 258 | DUFT BORNSEN & FETTIG LLP | 50 |
If you have any questions about the Top Patent Firms 2018 list, or any other patent analytics related questions, feel free to contact:
Rocky Berndsen
Head of Patent Analytics
rberndsen@harrityllp.com