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 3620-3629, 3680-3689, or 3690-3699. Only patent firms that have obtained at least 10 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. | 230 | 145 | 59% |
| 2 | FOLEY & LARDNER LLP | 205 | 148 | 39% |
| 2 | SCHWEGMAN LUNDBERG & WOESSNER P.A. | 205 | 161 | 27% |
| 4 | KILPATRICK TOWNSEND & STOCKTON LLP | 159 | 182 | -13% |
| 5 | HAYNES AND BOONE LLP | 131 | 103 | 27% |
| 6 | ALSTON & BIRD LLP | 126 | 104 | 21% |
| 6 | KNOBBE MARTENS OLSON & BEAR LLP | 126 | 97 | 30% |
| 8 | BOOKOFF MCANDREWS LLC | 101 | 67 | 51% |
| 9 | FINNEGAN HENDERSON FARABOW GARRETT & DUNNER LLP | 98 | 121 | -19% |
| 10 | ARMSTRONG TEASDALE LLP | 97 | 88 | 10% |
| 11 | LEE & HAYES PLLC | 96 | 93 | 3% |
| 12 | PERKINS COIE LLP | 86 | 64 | 34% |
| 12 | SHOOK HARDY & BACON L.L.P. | 86 | 116 | -26% |
| 14 | DLA PIPER LLP | 85 | 83 | 2% |
| 15 | BANNER & WITCOFF LTD | 75 | 109 | -31% |
| 15 | FENWICK & WEST LLP | 75 | 101 | -26% |
| 15 | MARSHALL GERSTEIN & BORUN LLP | 75 | 88 | -15% |
| 18 | HARRITY & HARRITY LLP | 72 | 47 | 53% |
| 19 | GREENBERG TRAURIG LLP | 63 | 40 | 58% |
| 20 | POLSINELLI LLP | 59 | 38 | 55% |
| 21 | BAKER BOTTS L.L.P | 58 | 44 | 32% |
| 22 | MORGAN LEWIS & BOCKIUS LLP | 56 | 46 | 22% |
| 23 | TROUTMAN PEPPER | 55 | 48 | 15% |
| 24 | FITCH EVEN TABIN & FLANNERY LLP | 53 | 56 | -5% |
| 25 | BRYAN CAVE LEIGHTON PAISNER | 52 | 71 | -27% |
| 26 | HANLEY FLIGHT & ZIMMERMAN LLC | 50 | 30 | 67% |
| 27 | MERCHANT & GOULD P.C. | 49 | 43 | 14% |
| 27 | THE WEBB LAW FIRM | 49 | 29 | 69% |
| 29 | CANTOR COLBURN LLP | 48 | 34 | 41% |
| 29 | HARNESS IP | 48 | 48 | 0% |
| 31 | BUCHANAN INGERSOLL & ROONEY P.C | 43 | 62 | -31% |
| 31 | FLETCHER YODER P.C. | 43 | 29 | 48% |
| 31 | LEMPIA SUMMERFIELD KATZ LLC | 43 | 57 | -25% |
| 34 | SCHMEISER OLSEN & WATTS LLP | 42 | 55 | -24% |
| 35 | OBLON MCCLELLAND MAIER & NEUSTADT L.L.P. | 40 | 19 | 111% |
| 35 | PATTERSON & SHERIDAN LLP. | 40 | 30 | 33% |
| 37 | PILLSBURY WINTHORP SHAW PITTMAN LLP | 39 | 57 | -32% |
| 38 | NORTON ROSE FULBRIGHT | 38 | 32 | 19% |
| 38 | STERNE KESSLER GOLDSTEIN & FOX P.L.L.C. | 38 | 13 | 192% |
| 40 | BUCKLEY MASCHOFF & TALWALKAR LLC | 37 | 42 | -12% |
| 40 | RYAN MASON & LEWIS LLP | 37 | 24 | 54% |
| 40 | SUGHRUE MION PLC | 37 | 49 | -24% |
| 43 | DUANE MORRIS LLP | 35 | 18 | 94% |
| 43 | LOEB & LOEB LLP | 35 | 22 | 59% |
| 45 | ALLEN DYER DOPPELT & GILCHRIST | 34 | 17 | 100% |
| 45 | HESLIN ROTHENBERG FARLEY & MESITI P.C. | 34 | 12 | 183% |
| 45 | THOMAS HORSTEMEYER LLP | 34 | 42 | -19% |
| 48 | FIG. 1 PATENTS | 33 | 0 | 100% |
| 48 | GUNTIN & GUST PLC | 33 | 28 | 18% |
| 48 | KACVINSKY DAISAK BLUNI PLLC | 33 | 1 | 3200% |
| 48 | SHEPPARD MULLIN RICHTER & HAMPTON LLP | 33 | 30 | 10% |
| 48 | VAN PELT YI & JAMES LLP | 33 | 19 | 74% |
| 53 | AMIN TUROCY & WATSON LLP | 32 | 25 | 28% |
| 54 | SCULLY SCOTT MURPHY & PRESSER PC | 30 | 30 | 0% |
| 55 | KELLER JOLLEY PREECE | 29 | 38 | -24% |
| 56 | HUNTON ANDREWS KURTH LLP | 27 | 17 | 59% |
| 57 | GREENBLUM & BERNSTEIN P.L.C. | 26 | 34 | -24% |
| 57 | MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP | 26 | 68 | -62% |
| 59 | BARNES & THORNBURG LLP | 25 | 16 | 56% |
| 59 | DORITY & MANNING P.A. | 25 | 24 | 4% |
| 59 | MOORE & VAN ALLEN PLLC | 25 | 25 | 0% |
| 59 | NIXON & VANDERHYE P.C. | 25 | 35 | -29% |
| 59 | ROBERTS CALDERON SAFRAN & COLE P.C. | 25 | 30 | -17% |
| 64 | WOLF GREENFIELD & SACKS P.C. | 24 | 23 | 4% |
| 65 | FERGUSON BRASWELL FRASER KUBASTA PC | 23 | 17 | 35% |
| 65 | MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC | 23 | 17 | 35% |
| 65 | YEE & ASSOCIATES P.C. | 23 | 26 | -12% |
| 68 | BAKER & HOSTETLER LLP | 22 | 31 | -29% |
| 68 | DENTONS | 22 | 23 | -4% |
| 68 | EVERSHEDS SUTHERLAND (US) LLP | 22 | 31 | -29% |
| 68 | FAEGRE DRINKER BIDDLE & REATH LLP | 22 | 15 | 47% |
| 68 | GARLICK & MARKISON | 22 | 16 | 38% |
| 68 | MCDERMOTT WILL & EMERY LLP | 22 | 15 | 47% |
| 68 | OTTERSTEDT WALLACE & KAMMER LLP | 22 | 14 | 57% |
| 75 | COOPER LEGAL GROUP LLC | 21 | 34 | -38% |
| 75 | EDELL SHAPIRO & FINNAN LLC | 21 | 18 | 17% |
| 77 | MAHAMEDI IP LAW LLP | 20 | 16 | 25% |
| 77 | MANNAVA & KANG P.C. | 20 | 9 | 122% |
| 77 | MATTINGLY & MALUR PC | 20 | 22 | -9% |
| 77 | MCGINN IP LAW GROUP PLLC | 20 | 13 | 54% |
| 77 | WOMBLE BOND DICKINSON (US) LLP | 20 | 20 | 0% |
| 82 | BRINKS GILSON & LIONE | 19 | 25 | -24% |
| 82 | CROWELL & MORING LLP | 19 | 5 | 280% |
| 82 | HICKMAN BECKER BINGHAM LEDESMA LLP | 19 | 35 | -46% |
| 82 | HOVEY WILLIAMS LLP | 19 | 9 | 111% |
| 82 | MICHAEL BEST & FRIEDRICH LLP | 19 | 13 | 46% |
| 82 | PROCOPIO CORY HARGREAVES & SAVITCH LLP | 19 | 13 | 46% |
| 88 | CALDWELL INTELLECTUAL PROPERTY LAW | 18 | 11 | 64% |
| 88 | DICKINSON WRIGHT PLLC | 18 | 3 | 500% |
| 88 | KIM & STEWART LLP | 18 | 15 | 20% |
| 88 | SHUMAKER & SIEFFERT P.A. | 18 | 20 | -10% |
| 92 | DINSMORE & SHOHL LLP | 17 | 12 | 42% |
| 92 | HOGAN LOVELLS US LLP | 17 | 15 | 13% |
| 92 | KOWERT HOOD MUNYON RANKIN & GOETZEL P.C. | 17 | 29 | -41% |
| 92 | KRAGULJAC LAW GROUP LLC | 17 | 22 | -23% |
| 96 | ARENT FOX LLP | 16 | 13 | 23% |
| 96 | FLEIT INTELLECTUAL PROPERTY LAW | 16 | 10 | 60% |
| 96 | JEFFERSON IP LAW LLP | 16 | 10 | 60% |
| 96 | K&L GATES LLP | 16 | 16 | 0% |
| 96 | KEOHANE & D'ALESSANDRO PLLC | 16 | 8 | 100% |
| 96 | SEED INTELLECTUAL PROPERTY LAW GROUP | 16 | 9 | 78% |
| 102 | AMSTER ROTHSTEIN & EBENSTEIN LLP | 15 | 14 | 7% |
| 102 | CHIP LAW GROUP | 15 | 7 | 114% |
| 102 | SPRINKLE IP LAW GROUP | 15 | 19 | -21% |
| 102 | WORKMAN NYDEGGER | 15 | 12 | 25% |
| 106 | ESPLIN & ASSOCIATES PC | 14 | 12 | 17% |
| 106 | GRIFFITHS & SEATON PLLC | 14 | 0 | 100% |
| 106 | LEYDIG VOIT & MAYER LTD | 14 | 9 | 56% |
| 106 | LOWENSTEIN & SANDLER LLP | 14 | 30 | -53% |
| 106 | METIS IP LAW LLC | 14 | 5 | 180% |
| 106 | PARADICE AND LI LLP | 14 | 11 | 27% |
| 106 | SNELL & WILMER L.L.P. | 14 | 13 | 8% |
| 106 | TERRILE CANNATTI CHAMBERS & HOLLAND LLP | 14 | 13 | 8% |
| 114 | ANOVA LAW GROUP PLLC | 13 | 10 | 30% |
| 114 | BYRNE POH LLP | 13 | 2 | 550% |
| 114 | FERENCE & ASSOCIATES LLC | 13 | 8 | 63% |
| 114 | FISHERBROYLES LLP | 13 | 15 | -13% |
| 114 | MEDLEY BEHRENS & LEWIS LLC | 13 | 11 | 18% |
| 114 | PATENT LAW WORKS LLP | 13 | 26 | -50% |
| 114 | SHERMAN IP LLP | 13 | 10 | 30% |
| 121 | ANSARI KATIRAEI LLP | 12 | 2 | 500% |
| 121 | ATHORUS PLLC | 12 | 13 | -8% |
| 121 | DERGOSITS & NOAH LLP | 12 | 6 | 100% |
| 121 | HOLLAND & KNIGHT LLP | 12 | 6 | 100% |
| 121 | LOCKE LORD LLP | 12 | 8 | 50% |
| 121 | TUTUNJIAN & BITETTO P.C. | 12 | 11 | 9% |
| 121 | WEISS & ARONS LLP | 12 | 3 | 300% |
| 121 | WESTMAN CHAMPLIN & KOEHLER P.A. | 12 | 16 | -25% |
| 121 | XSENSUS LLP | 12 | 13 | -8% |
| 130 | BROOKS KUSHMAN P.C. | 11 | 5 | 120% |
| 130 | HAVERSTOCK & OWENS LLP | 11 | 6 | 83% |
| 130 | INVOKE | 11 | 5 | 120% |
| 130 | NEO IP | 11 | 11 | 0% |
| 130 | POTOMAC LAW GROUP PLLC | 11 | 13 | -15% |
| 135 | ALLEMAN HALL CREASMAN & TUTTLE LLP | 10 | 7 | 43% |
| 135 | CONLEY ROSE P.C. | 10 | 10 | 0% |
| 135 | FOX ROTHSCHILD LLP | 10 | 7 | 43% |
| 135 | HONIGMAN MILLER SCHWARTZ & COHN LLP | 10 | 7 | 43% |
| 135 | KWAN & OLYNICK LLP | 10 | 12 | -17% |
| 135 | LEASON ELLIS LLP | 10 | 7 | 43% |
| 135 | NIXON & PEABODY LLP | 10 | 10 | 0% |
| 135 | QUARLES & BRADY LLP | 10 | 9 | 11% |
| 135 | ROWAND LLP | 10 | 2 | 400% |
| 135 | WENDEROTH LIND & PONACK L.L.P. | 10 | 6 | 67% |
| 135 | WILSON SONSINI GOODRICH & ROSATI | 10 | 14 | -29% |
| 135 | WINSTEAD PC | 10 | 8 | 25% |
| 135 | ZILKA-KOTAB P.C. | 10 | 11 | -9% |
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