Top Patent Firms 2021 - Transportation, Construction, Agriculture, Licensing and Review

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 - OverallLaw Firm Name2021 Patents2020 PatentsYoY Difference
1CANTOR COLBURN LLP512615-17%
2OLIFF PLC484622-22%
3OBLON MCCLELLAND MAIER & NEUSTADT L.L.P.366444-18%
4HARNESS IP364388-6%
5SUGHRUE MION PLC351409-14%
6DINSMORE & SHOHL LLP34324441%
7FISH & RICHARDSON P.C.341378-10%
8MORGAN LEWIS & BOCKIUS LLP322442-27%
9FOLEY & LARDNER LLP32127019%
10BROOKS KUSHMAN P.C.302473-36%
11DICKINSON WRIGHT PLLC28525512%
12NIXON & VANDERHYE P.C.27023017%
13KNOBBE MARTENS OLSON & BEAR LLP258406-36%
14MICHAEL BEST & FRIEDRICH LLP2552502%
15KILPATRICK TOWNSEND & STOCKTON LLP248306-19%
16NORTON ROSE FULBRIGHT243279-13%
17PRICE HENEVELD LLP238261-9%
18DORITY & MANNING P.A.235275-15%
19MCCOY RUSSELL LLP21814748%
20BIRCH STEWART KOLACH & BIRCH LLP210250-16%
21BARNES & THORNBURG LLP207236-12%
22RANKIN HILL & CLARK LLP2052021%
23GLOBAL IP COUNCELORS LLP20416226%
24CROWELL & MORING LLP199268-26%
25WOMBLE BOND DICKINSON (US) LLP19615923%
26CARLSON GASKEY & OLDS. P.C.18515916%
27BEJIN BIENEMAN PLC181236-23%
28BUCHANAN INGERSOLL & ROONEY P.C180222-19%
29MUNCY GEISSLER OLDS & LOWE P.C.171211-19%
30MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP170195-13%
31SCHWEGMAN LUNDBERG & WOESSNER P.A.1681661%
32SNELL & WILMER L.L.P.165201-18%
33AMIN TUROCY & WATSON LLP16312827%
34WENDEROTH LIND & PONACK L.L.P.160184-13%
35MASCHOFF BRENNAN15813022%
36GREENBLUM & BERNSTEIN P.L.C.149205-27%
37FAEGRE DRINKER BIDDLE & REATH LLP144190-24%
37MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC144165-13%
39STUDEBAKER & BRACKETT PC1401335%
40BAKER BOTTS L.L.P136149-9%
40HAUPTMAN HAM LLP1361286%
40TAFT STETTININUS & HOLLISTER LLP136167-19%
43PERKINS COIE LLP13511023%
43WORKMAN NYDEGGER1351267%
45THE WEBB LAW FIRM133151-12%
46LEYDIG VOIT & MAYER LTD13011513%
46MAIER & MAIER PLLC13011018%
48HAYNES AND BOONE LLP129153-16%
48JCIPRNET129155-17%
50ALSTON & BIRD LLP1251204%
51BRACEWELL LLP124127-2%
52WESTERMAN HATTORI DANIELS & ADRIAN LLP1231175%
53FINNEGAN HENDERSON FARABOW GARRETT & DUNNER LLP122131-7%
54LEE & HAYES PLLC1191144%
55RENNER OTTO BOISSELLE & SKLAR LLP1161087%
56VENABLE LLP115120-4%
56VOLPE & KOENIG P.C.115123-7%
58PATTERSON & SHERIDAN LLP.114134-15%
58QUINN IP LAW1149520%
60POLSINELLI LLP1121048%
60SUITER SWANTZ PC LLO1126378%
62YOUNG BASILE HANLON & MACFARLANE P.C.111141-21%
63ARMSTRONG TEASDALE LLP1109417%
63QUARLES & BRADY LLP1109318%
65GREER BURNS & CRAIN LTD.1091090%
66EVERSHEDS SUTHERLAND (US) LLP1089810%
66SHERIDAN ROSS P.C.1081080%
68MERCHANT & GOULD P.C.107130-18%
69HANLEY FLIGHT & ZIMMERMAN LLC105115-9%
70C. TUMEY LAW GROUP PLLC1048227%
71BAKER & HOSTETLER LLP103155-34%
72LORENZ & KOPF LLP102146-30%
73BRINKS GILSON & LIONE101142-29%
74MARSHALL GERSTEIN & BORUN LLP99972%
75ANDRUS INTELLECTUAL PROPERTY LAW LLP967725%
75CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC968020%
75OSHA BERGMAN WATANABE & BURTON LLP96110-13%
75TAROLLI SUNDHEIM COVELL & TUMMINO L.L.P.966841%
79THE SMALL PATENT LAW GROUP LLC95102-7%
80ANOVA LAW GROUP PLLC947231%
80FITCH EVEN TABIN & FLANNERY LLP94134-30%
82CONLEY ROSE P.C.937721%
83LADAS & PARRY LLP906441%
84HOWARD & HOWARD ATTORNEYS PLLC887321%
85BANNER & WITCOFF LTD87120-28%
85BAYRAMOGLU LAW OFFICES LLC875267%
87TROUTMAN PEPPER867416%
88MARSHALL & MELHORN LLC857415%
89CARRIER BLACKMAN & ASSOCIATES P.C.845358%
90RATNERPRESTIA83112-26%
91LOCKE LORD LLP82794%
91REISING ETHINGTON P.C.82111-26%
91WOLF GREENFIELD & SACKS P.C.82776%
94HONIGMAN MILLER SCHWARTZ & COHN LLP81101-20%
95ARENT FOX LLP806916%
96LEMPIA SUMMERFIELD KATZ LLC79755%
96MAGINOT MOORE & BECK LLP7981-2%
98FINCH & MALONEY PLLC7726196%
98WESTMAN CHAMPLIN & KOEHLER P.A.77102-25%
100DORSEY & WHITNEY LLP7686-12%
101SLATER MATSIL75733%
102ALLEMAN HALL CREASMAN & TUTTLE LLP7380-9%
102DARROW MUSTAFA PC7383-12%
102SEED INTELLECTUAL PROPERTY LAW GROUP7387-16%
102WOOD HERRON & EVANS LLP7395-23%
106COLLARD & ROE P. C.715725%
106SCHMEISER OLSEN & WATTS LLP7189-20%
108FISHERBROYLES LLP704749%
108GREENBERG TRAURIG LLP7085-18%
108MCDERMOTT WILL & EMERY LLP7075-7%
108PROCOPIO CORY HARGREAVES & SAVITCH LLP7032119%
112BOTOS CHURCHILL IP LAW LLP6869-1%
113BLANK ROME LLP676110%
113FISHMAN STEWART PLLC675326%
113MAYER & WILLIAMS PC6776-12%
113PEARNE & GORDON LLP6786-22%
117K&L GATES LLP6670-6%
117KEATING & BENNETT LLP6676-13%
119STERNE KESSLER GOLDSTEIN & FOX P.L.L.C.645028%
120COZEN O'CONNOR63622%
120J-TEK LAW PLLC6329117%
120NELSON MULLINS RILEY & SCARBOROUGH LLP6366-5%
123POSZ LAW GROUP PLC6266-6%
123XSENSUS LLP624344%
125LERNER DAVID LITTENBERG KRUMHOLZ & MENTLIK LLP61610%
125MORI & WARD LLP6186-29%
125THOMAS HORSTEMEYER LLP6170-13%
128FENWICK & WEST LLP5984-30%
128GARCIA-ZAMOR IP LAW59557%
128SCULLY SCOTT MURPHY & PRESSER PC595213%
128SHACKELFORD BOWEN MCKINLEY & NORTON LLP5914321%
128SHEPPARD MULLIN RICHTER & HAMPTON LLP595311%
133MCGUIREWOODS LLP5866-12%
134THYSSENKRUPP NORTH AMERICA INC.5660-7%
135BURRIS LAW PLLC5564-14%
135DLA PIPER LLP553845%
135NOVICK KIM & LEE PLLC554425%
135PATENT PORTFOLIO BUILDERS PLLC55526%
135SAND & SEBOLT LPA554134%
135SHUMAKER LOOP & KENDRICK LLP555010%
141JENKINS WILSON TAYLOR & HUNT P.A.54516%
141LEASON ELLIS LLP544035%
141MIDDLETON REUITLINGER544326%
141PERMAN & GREEN LLP5457-5%
145CARTER DELUCA FARRELL & SCHMIDT LLP534713%
145CLEMENTS BERNARD WALKER PLLC53530%
145MATTINGLY & MALUR PC534518%
145PATTERSON INTELLECTUAL PROPERTY LAW P.C.534518%
149FLETCHER YODER P.C.5272-28%
149KLINTWORTH & ROZENBLAT IP LLC524711%
149LAWRENCE YOUST PLLC5253-2%
152HESLIN ROTHENBERG FARLEY & MESITI P.C.514611%
152LEWIS ROCA ROTHGERBER CHRISTIE LLP5160-15%
152TRASKBRITT P.C.5169-26%
152WARNER NORCROSS & JUDD LLP5166-23%
156CHAMBERLAIN HRDLICKA5059-15%
156DENTONS503928%
156FOX ROTHSCHILD LLP504511%
156HAMRE SCHUMANN MUELLER & LARSON P.C.5063-21%
156HUNTON ANDREWS KURTH LLP5082-39%
156VAN PELT YI & JAMES LLP504316%

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Contact Us

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

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