Top Patent Firms 2021 - Chemical and Materials Engineering

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 - OverallLaw Firm Name2021 Patents2020 PatentsYoY Difference
1OBLON MCCLELLAND MAIER & NEUSTADT L.L.P.8701092-20%
2BIRCH STEWART KOLACH & BIRCH LLP838874-4%
3SUGHRUE MION PLC685729-6%
4CANTOR COLBURN LLP562646-13%
5OLIFF PLC553624-11%
6LERNER DAVID LITTENBERG KRUMHOLZ & MENTLIK LLP387408-5%
7FOLEY & LARDNER LLP385421-9%
8FISH & RICHARDSON P.C.36727732%
9MORGAN LEWIS & BOCKIUS LLP328375-13%
10HARNESS IP327354-8%
11WESTERMAN HATTORI DANIELS & ADRIAN LLP3052828%
12GREENBLUM & BERNSTEIN P.L.C.2842676%
13DORITY & MANNING P.A.28124017%
14WENDEROTH LIND & PONACK L.L.P.27525010%
15DINSMORE & SHOHL LLP26921823%
16LEWIS ROCA ROTHGERBER CHRISTIE LLP2402247%
17KNOBBE MARTENS OLSON & BEAR LLP238311-23%
18FAEGRE DRINKER BIDDLE & REATH LLP2342330%
19OSHA BERGMAN WATANABE & BURTON LLP22213564%
20KILPATRICK TOWNSEND & STOCKTON LLP219282-22%
21FINNEGAN HENDERSON FARABOW GARRETT & DUNNER LLP2182018%
22JCIPRNET212234-9%
23BUCHANAN INGERSOLL & ROONEY P.C203223-9%
24PATTERSON & SHERIDAN LLP.1961932%
25NIXON & VANDERHYE P.C.19417312%
26DENTONS190247-23%
26MUNCY GEISSLER OLDS & LOWE P.C.1901768%
28MCDERMOTT WILL & EMERY LLP189204-7%
29RATNERPRESTIA18114128%
30K&L GATES LLP17414619%
31VENABLE LLP171180-5%
32THE WEBB LAW FIRM167199-16%
33DICKINSON WRIGHT PLLC1601507%
34BROOKS KUSHMAN P.C.156170-8%
35LEYDIG VOIT & MAYER LTD151152-1%
36BAKER & HOSTETLER LLP142176-19%
36WOLF GREENFIELD & SACKS P.C.14212910%
38MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC1411410%
39THORPE NORTH & WESTERN LLP1381315%
40ARMSTRONG TEASDALE LLP1361259%
40MERCHANT & GOULD P.C.136159-14%
42PILLSBURY WINTHORP SHAW PITTMAN LLP130140-7%
43PEARNE & GORDON LLP128145-12%
44HAMRE SCHUMANN MUELLER & LARSON P.C.1271270%
45CROWELL & MORING LLP1268647%
46GREER BURNS & CRAIN LTD.12410320%
46MARSHALL GERSTEIN & BORUN LLP1241222%
46WOMBLE BOND DICKINSON (US) LLP124154-19%
49MICHAEL BEST & FRIEDRICH LLP1219034%
50KENJA IP LAW PC120139-14%
51MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP1191181%
51STUDEBAKER & BRACKETT PC119148-20%
51THOMAS HORSTEMEYER LLP1197853%
54BURR & BROWN PLLC118129-9%
55FITCH EVEN TABIN & FLANNERY LLP116145-20%
55RANKIN HILL & CLARK LLP116119-3%
57BRACEWELL LLP1148337%
58ARENT FOX LLP1129123%
58LOCKE LORD LLP112128-13%
60BARNES & THORNBURG LLP111131-15%
60MILLEN WHITE ZELANO & BRANIGAN P.C.111161-31%
62NATH GOLDBERG & MEYER1101046%
62SNELL & WILMER L.L.P.110127-13%
64DLA PIPER LLP108127-15%
64NORTON ROSE FULBRIGHT108173-38%
66ROTHWELL FIGG ERNST & MANBECK P.C.101119-15%
67BAKER BOTTS L.L.P100121-17%
67DUANE MORRIS LLP100973%
69PERKINS COIE LLP986746%
69POLSINELLI LLP98102-4%
71OSTROLENK FABER LLP97131-26%
72HAUPTMAN HAM LLP96124-23%
73MUETING RAASCH GROUP946740%
73NOVICK KIM & LEE PLLC94931%
75SCHWEGMAN LUNDBERG & WOESSNER P.A.88105-16%
76EVERSHEDS SUTHERLAND (US) LLP8599-14%
76GRUNEBERG AND MYERS PLLC8535143%
76TROUTMAN PEPPER8591-7%
79BAYRAMOGLU LAW OFFICES LLC846235%
79CARLSON GASKEY & OLDS. P.C.8487-3%
79SCIENBIZIP P.C.8487-3%
82MEUNIER CARLIN & CURFMAN LLC836332%
82WORKMAN NYDEGGER8386-3%
84AMIN TUROCY & WATSON LLP816133%
84BANNER & WITCOFF LTD8185-5%
84SEED INTELLECTUAL PROPERTY LAW GROUP8193-13%
87RENNER OTTO BOISSELLE & SKLAR LLP8094-15%
88GREENBERG TRAURIG LLP796620%
89ABELMAN FRAYNE & SCHWAB787110%
89HAYNES AND BOONE LLP78737%
91MAIER & MAIER PLLC776028%
92LUCAS & MERCANTI LLP7679-4%
92MYERS BIGEL P.A.766910%
94LORENZ & KOPF LLP7475-1%
94NIXON & PEABODY LLP74107-31%
96QUARLES & BRADY LLP73106-31%
97GLOBAL IP COUNCELORS LLP726216%
97VOLPE & KOENIG P.C.7292-22%
99ALSTON & BIRD LLP716313%
99PANITCH SCHWARZE BELISARIO & NADEL LLP7191-22%
99SHERIDAN ROSS P.C.7187-18%
99TAROLLI SUNDHEIM COVELL & TUMMINO L.L.P.7172-1%
103BLANK ROME LLP6873-7%
103MCGARRY BAIR PC6898-31%
105LEASON ELLIS LLP676110%
105LEE IP LAW PC67106-37%
105SCULLY SCOTT MURPHY & PRESSER PC6783-19%
108RABIN & BERDO P.C.6670-6%
109BRINKS GILSON & LIONE6579-18%
109DORSEY & WHITNEY LLP6575-13%
109VORYS SATER SEYMOUR & PEASE LLP6570-7%
112HONIGMAN MILLER SCHWARTZ & COHN LLP6469-7%
113CALFEE HALTER & GRISWOLD LLP635515%
113MCKEE VOORHEES & SEASE PLC6366-5%
113SLATER MATSIL634250%
116CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC624732%
116COZEN O'CONNOR624829%
116FISHERBROYLES LLP624635%
119RENNER KENNER GREIVE BOBAK TAYLOR & WEBER614439%
120FAY SHARPE LLP6074-19%
121MASCHOFF BRENNAN595311%
122QUINN IP LAW584529%
123STERNE KESSLER GOLDSTEIN & FOX P.L.L.C.573278%
124CONLEY ROSE P.C.5676-26%
124LOWENSTEIN & SANDLER LLP564914%
126KED & ASSOCIATES LLP5469-22%
126NORRIS MCLAUGHLIN P.A.5466-18%
128HP INC. PATENT DEPARTMENT534420%
128HUNTON ANDREWS KURTH LLP5355-4%
130KAGAN BINDER PLLC524613%
130MH2 TECHNOLOGY LAW GROUP LLP5256-7%
130STINSON LEONARD STREET LLP524711%
133BOZICEVIC FIELD & FRANCIS LLP5159-14%
133MOSER TABOADA5152-2%
135MATTINGLY & MALUR PC504511%
135WEAVER AUSTIN VILLENEUVE & SAMPSON LLP5069-28%

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Contact Us

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

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