Top Patent Firms 2021 - Mechanical Engineering, Manufacturing and Products

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 3700-3769, 3780-3789. 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 LLP492602-18%
2OLIFF PLC490523-6%
3OBLON MCCLELLAND MAIER & NEUSTADT L.L.P.486594-18%
4FISH & RICHARDSON P.C.4454284%
5HARNESS IP396431-8%
6CARLSON GASKEY & OLDS. P.C.391496-21%
7DORITY & MANNING P.A.376578-35%
8FOLEY & LARDNER LLP3723652%
9KNOBBE MARTENS OLSON & BEAR LLP366372-2%
9NIXON & VANDERHYE P.C.3663534%
11MCCOY RUSSELL LLP336362-7%
12NORTON ROSE FULBRIGHT319355-10%
13BIRCH STEWART KOLACH & BIRCH LLP292354-18%
14SUGHRUE MION PLC2832657%
15MICHAEL BEST & FRIEDRICH LLP264267-1%
16BARNES & THORNBURG LLP26019831%
17MUNCY GEISSLER OLDS & LOWE P.C.241247-2%
18CROWELL & MORING LLP22116534%
19MORGAN LEWIS & BOCKIUS LLP217309-30%
20DICKINSON WRIGHT PLLC2051974%
21MCANDREWS HELD & MALLOY LTD.1951827%
22WENDEROTH LIND & PONACK L.L.P.191250-24%
23WOMBLE BOND DICKINSON (US) LLP19016515%
24ARMSTRONG TEASDALE LLP183202-9%
25KILPATRICK TOWNSEND & STOCKTON LLP180204-12%
26STUDEBAKER & BRACKETT PC166171-3%
27OSHA BERGMAN WATANABE & BURTON LLP16113321%
27POSZ LAW GROUP PLC1611535%
29BUCHANAN INGERSOLL & ROONEY P.C156199-22%
30FLETCHER YODER P.C.155157-1%
30PEARNE & GORDON LLP155219-29%
32MARSHALL GERSTEIN & BORUN LLP146147-1%
33MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO PC142167-15%
34SNELL & WILMER L.L.P.141182-23%
35BANNER & WITCOFF LTD14012116%
36FINNEGAN HENDERSON FARABOW GARRETT & DUNNER LLP139145-4%
37DINSMORE & SHOHL LLP13811520%
38SCHWEGMAN LUNDBERG & WOESSNER P.A.1361259%
39THE WEBB LAW FIRM135138-2%
40BRINKS GILSON & LIONE129216-40%
41FAEGRE DRINKER BIDDLE & REATH LLP127130-2%
41NEAL GERBER & EISENBERG LLP127155-18%
43BAKER & HOSTETLER LLP125157-20%
43GREENBLUM & BERNSTEIN P.L.C.125136-8%
45CARTER DELUCA FARRELL & SCHMIDT LLP124153-19%
46KED & ASSOCIATES LLP121156-22%
47LOCKE LORD LLP1188539%
48QUARLES & BRADY LLP11710413%
49FITCH EVEN TABIN & FLANNERY LLP1151096%
49PRICE HENEVELD LLP115128-10%
51ALLEMAN HALL CREASMAN & TUTTLE LLP114119-4%
51BROOKS KUSHMAN P.C.114157-27%
53MCDONNELL BOEHNEN HUBERT & BERGHOFF LLP113137-18%
54JCIPRNET110122-10%
55PERKINS COIE LLP1071043%
56KINNEY & LANGE P.A.1051041%
56LEYDIG VOIT & MAYER LTD105135-22%
56MCGARRY BAIR PC105145-28%
59RANKIN HILL & CLARK LLP104116-10%
60GREER BURNS & CRAIN LTD.103115-10%
60MAGINOT MOORE & BECK LLP103143-28%
62POLSINELLI LLP97943%
63BAKER BOTTS L.L.P96126-24%
63RENNER OTTO BOISSELLE & SKLAR LLP96933%
63TROUTMAN PEPPER968710%
66MERCHANT & GOULD P.C.95131-27%
66PATTERSON & SHERIDAN LLP.95914%
66SHOOK HARDY & BACON L.L.P.957920%
66STAAS & HALSEY LLP958019%
70HAUPTMAN HAM LLP94106-11%
70QUINN IP LAW94931%
70WESTERMAN HATTORI DANIELS & ADRIAN LLP9498-4%
73HAMRE SCHUMANN MUELLER & LARSON P.C.93120-23%
74SCHMEISER OLSEN & WATTS LLP9242119%
75FROST BROWN TODD LLC907422%
75HOWARD & HOWARD ATTORNEYS PLLC90104-13%
77FISHERBROYLES LLP897519%
77K&L GATES LLP89118-25%
79SHUMAKER & SIEFFERT P.A.887911%
79VENABLE LLP88845%
81MAIER & MAIER PLLC8795-8%
82BACHMAN & LAPOINTE P.C.8587-2%
83CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC847315%
83DORSEY & WHITNEY LLP84104-19%
85DENTONS836136%
85GLOBAL IP COUNCELORS LLP8395-13%
87ANDRUS INTELLECTUAL PROPERTY LAW LLP8283-1%
87LORENZ & KOPF LLP82119-31%
89PILLSBURY WINTHORP SHAW PITTMAN LLP8091-12%
89SHERIDAN ROSS P.C.8085-6%
89STERNE KESSLER GOLDSTEIN & FOX P.L.L.C.806327%
92VOLPE & KOENIG P.C.7996-18%
92WORKMAN NYDEGGER7994-16%
94BURRIS LAW PLLC7778-1%
94FISHMAN STEWART PLLC7788-13%
94GREENBERG TRAURIG LLP77718%
94WESTMAN CHAMPLIN & KOEHLER P.A.7790-14%
98MAYER & WILLIAMS PC7584-11%
99KLARQUIST SPARKMAN LLP7499-25%
99LUCAS & MERCANTI LLP746023%
99TAFT STETTININUS & HOLLISTER LLP74111-33%
102MCGLEW AND TUTTLE P.C.7383-12%
102WOOD HERRON & EVANS LLP736611%
104SEED INTELLECTUAL PROPERTY LAW GROUP7286-16%
105BOOKOFF MCANDREWS LLC7177-8%
105HANLEY FLIGHT & ZIMMERMAN LLC71693%
105WOLF GREENFIELD & SACKS P.C.71693%
108SHUTTLEWORTH & INGERSOLL PLC706213%
109HONIGMAN MILLER SCHWARTZ & COHN LLP6877-12%
110LERNER DAVID LITTENBERG KRUMHOLZ & MENTLIK LLP675522%
111PENILLA IP APC665520%
112COZEN O'CONNOR6485-25%
112MCDERMOTT WILL & EMERY LLP6497-34%
112XSENSUS LLP6428129%
115HOFFMAN WARNICK LLC6385-26%
115MASCHOFF BRENNAN635711%
115REINHART BOERNER VAN DEUREN P.C.635026%
118BAYRAMOGLU LAW OFFICES LLC613197%
118GETZ BALICH61104-41%
118RATNERPRESTIA61100-39%
121LEMPIA SUMMERFIELD KATZ LLC6017253%
121OSTROLENK FABER LLP605215%
123LEE & HAYES PLLC584529%
123REISING ETHINGTON P.C.5881-28%
125BLANK ROME LLP5768-16%
126PROCOPIO CORY HARGREAVES & SAVITCH LLP5668-18%
126SHUMAKER LOOP & KENDRICK LLP5681-31%
128EDELL SHAPIRO & FINNAN LLC5565-15%
128NATH GOLDBERG & MEYER554912%
128ROTHWELL FIGG ERNST & MANBECK P.C.55518%
128TAYLOR ENGLISH DUMA LLP554134%
132BRANNON SOWERS & CRACRAFT PC543080%
132HAYNES AND BOONE LLP54524%
132MCCARTER & ENGLISH LLP5461-11%
135COLLARD & ROE P. C.5388-40%
136PANITCH SCHWARZE BELISARIO & NADEL LLP5283-37%
136THOMAS HORSTEMEYER LLP5265-20%
138BOUDWIN INTELLECTUAL PROPERTY LAW LLC513834%
139CALFEE HALTER & GRISWOLD LLP5067-25%
139RABIN & BERDO P.C.5064-22%

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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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