Prosecution Insights
Last updated: October 04, 2026

Chemistry & Materials: Law Firms

466 law firms with pending patent office actions in this technology area (USPTO Tech Center 1700) • 42,386 pending office actions combined

Browse by technology area: Biotechnology & Pharmaceuticals • Chemistry & Materials • Computing & Software • Networking & Security • Communications • Semiconductors, Circuits & Optics • Transportation, E-Commerce & Mechanical Systems • Medical Devices & Mechanical Engineering
FirmPending OAsShare of portfolio in this area
SUGHRUE MION, PLLC2,75226%
BIRCH STEWART KOLASCH & BIRCH, LLP2,02235%
OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P.1,72232%
Morgan, Lewis & Bockius LLP (WA)1,71324%
OLIFF PLC1,54528%
HARNESS DICKEY (DETROIT)1,06827%
HAUPTMAN HAM, LLP89622%
WENDEROTH, LIND & PONACK, L.L.P.83031%
LEYDIG VOIT & MAYER, LTD81725%
DINSMORE & SHOHL LLP75122%
WHDA, LLP71359%
BUCHANAN, INGERSOLL & ROONEY PC66229%
WOMBLE BOND DICKINSON (US) LLP65827%
THE WEBB LAW FIRM, P.C.60330%
HARNESS, DICKEY & PIERCE, P.L.C.60124%
MAIER & MAIER, PLLC58231%
GREENBLUM & BERNSTEIN, P.L.C.58047%
FAEGRE DRINKER BIDDLE & REATH LLP (DC)50920%
Anova Law Group, PLLC47832%
DORITY & MANNING, P.A.44525%
GREER, BURNS & CRAIN, LTD43424%
RANKIN, HILL & CLARK LLP41630%
Fox Rothschild LLP41224%
Bryan Cave Leighton Paisner LLP (DC)40051%
FITCH EVEN TABIN & FLANNERY, LLP39434%
HSML P.C.35422%
RENNER, OTTO, BOISSELLE & SKLAR, LLP34325%
CKC & Partners Co., LLC33521%
IP & T GROUP LLP33147%
NOVICK, KIM & LEE, PLLC, dba NKL Law26830%
McDonald Hopkins LLC26520%
K&L Gates LLP-Chicago26530%
K&L Gates LLP25232%
Lerner David LLP24938%
Dickinson Wright PLLC - Washington DC24622%
SNELL & WILMER L.L.P. (Main)24640%
MCCOY RUSSELL LLP24521%
Ladas & Parry LLP23938%
LUCAS & MERCANTI, LLP23826%
Bayramoglu Law Offices LLC23822%
Secant IP, PLLC23726%
MH2 TECHNOLOGY LAW GROUP, LLP22621%
Chrisman Gallo Tochtrop LLC21830%
PANITCH SCHWARZE BELISARIO & NADEL LLP20929%
CARTER, DELUCA & FARRELL LLP20632%
ARENTFOX SCHIFF LLP - New York19723%
Rimon PC - MWE19525%
MILLEN, WHITE, ZELANO & BRANIGAN, P.C.19131%
LEX IP MEISTER, PLLC18722%
Westbridge IP LLC18623%
Rimon PC - Panasonic Corporation17326%
Element IP, PLC16671%
KENJA IP LAW PC16573%
Calfee, Halter & Griswold LLP16536%
SHUMAKER, LOOP & KENDRICK, LLP16423%
SQUIRE PB (SFR Office)16224%
Grüneberg Global IP, PLLC15952%
Ipsilon USA - NLO15234%
HAYES SOLOWAY P.C.15228%
LIPPES MATHIAS LLP15229%
Hovey Williams LLP14726%
AMSTER, ROTHSTEIN & EBENSTEIN LLP14724%
K&L Gates LLP-Nestec S.A.14545%
HESLIN ROTHENBERG FARLEY & MESITI PC14521%
WOOD, HERRON & EVANS, LLP14529%
Burr & Forman LLP (Primary Customer Number)14233%
TRASKBRITT, P.C.14123%
MERCHANT & GOULD P.C. - BAT14190%
EVERSHEDS SUTHERLAND (US) LLP14029%
Davidson Kappel LLC13839%
FisherBroyles, LLP13524%
Li & Cai Intellectual Property(USA) office13320%
ANDRUS INTELLECTUAL PROPERTY LAW, LLP13022%
Maynard Nexsen PC (GREENVILLE OFFICE)12636%
STITES & HARBISON PLLC12328%
Solaris Intellectual Property Group, PLLC11933%
LEE IP LAW, P.C.11683%
Alleman Hall LLP11627%
COLLARD & ROE, P.C.11422%
MUETING RAASCH GROUP11135%
THORPE NORTH & WESTERN, LLP.11126%
Abel Schillinger, LLP10940%
Harvest IP Law, LLP10642%
Boone IP Law, PLLC10480%
Hoffmann & Baron LLP10328%
MOSER TABOADA10227%
Cantor Colburn LLP - General Motors9932%
OSTROLENK FABER LLP9741%
Vorys, Sater, Seymour and Pease LLP9429%
AVEK IP, LLC (OP Orig)9323%
McBee Moore & Vanik, IP, LLC9343%
SUGHRUE-2655508934%
The Dobrusin Law Firm P.C.8945%
Jordan IP Law, LLC8731%
Wiersch Law Group8422%
DILWORTH IP, LLC8324%
Cushman Partners, LLC8151%
WTA IP Law P.C.8023%
The Sun IP Law8024%
BOND, SCHOENECK & KING, PLLC7923%
MARSHALL & MELHORN, LLC7735%
Barclay Damon, LLP7626%
Quinn IP Law7528%
IP GROUP OF DLA PIPER LLP (US)7443%
MILES & STOCKBRIDGE PC7331%
DICKE, BILLIG & CZAJA7320%
J-TEK LAW PLLC7125%
SZDC Law P.C.7145%
IDEA Intellectual Limited7133%
BENESCH, FRIEDLANDER, COPLAN & ARONOFF LLP7031%
Duane Morris LLP (UDC)7086%
Laine IP Oy6836%
MCGINN INTELLECTUAL PROPERTY LAW GROUP, PLLC6734%
Kolitch Romano Dascenzo Gates LLP6427%
Venjuris, P.C.6434%
VIKSNINS HARRIS PADYS MALEN LLP6422%
K&L GATES LLP-Pittsburgh6420%
Li & Cai Intellectual Property Office6333%
Steinfl + Bruno LLP6321%
Bachman & LaPointe, P.C.6320%
Farber LLC6233%
PatShegen IP6033%
Christensen, Fonder, Dardi & Busse PLLC5946%
Harness, Dickey & Pierce-Altria5833%
CARRIER SHENDE AND ASSOCIATES PC5543%
Dority & Manning, P.A. and GEC-Aviation5421%
Cantor Colburn LLP - Collins Aerospace5423%
Davis Wright Tremaine LLP - Seattle5428%
Stevens Law Group5321%
CURATOLO SIDOTI & TRILLIS CO., LPA5359%
IPSILON USA5323%
Cherson Feldenkrais IP Law Firm LLP5321%
United One Law Group LLC5329%
Silvia Salvadori, P.C.5226%
DUANE MORRIS LLP - Boca Raton5120%
Dykema Gossett PLLC5127%
Perman & Green, LLP5020%
SHUTTLEWORTH & INGERSOLL, P.L.C.5026%
PATTERSON Intellectual Property Law, P.C.5024%
PDSD LAW4929%
BOSE MCKINNEY & EVANS LLP4927%
JCIP GLOBAL INC.4723%
FLYNN THIEL, P.C.4641%
Dority & Manning, P.A. and Ticona LLC4661%
Warner Norcross + Judd LLP - IP Group4681%
Taft Law4526%
NOTARO, MICHALOS & ZACCARIA P.C.4525%
KILYK & BOWERSOX, P.L.L.C.4539%
MCNEES WALLACE & NURICK LLC4531%
Rimon PC - ABE4494%
Law Office of Michael Chen4320%
DORSEY & WHITNEY LLP - Minneapolis4322%
GABLEGOTWALS4223%
True Shepherd, LLC (S)4230%
Houtteman Law, LLC4221%
PEACOCK LAW P.C.4237%
PORTER WRIGHT MORRIS & ARTHUR, LLP4227%
Law Offices of James Zhou4122%
Sandberg Phoenix & von Gontard, PC4123%
Dorsey & Whitney - SLC4126%
Cantor Colburn LLP - SABIC Americas4193%
TAYLOR & EDELSTEIN4153%
Cabinet Beau de Lomenie4035%
KATTEN MUCHIN ROSENMAN LLP3941%
Mori & Ward, LLP3924%
Shackelford, Bowen, McKinley & Norton (Amini)3921%
Capitol City TechLaw, PLLC3837%
UB GREENSFELDER LLP3844%
STETINA GARRED BRUCKER & NEWBOLES3822%
FGTL3828%
Walters & Wasylyna (Boeing)3758%
SERVILLA WHITNEY LLC3723%
McKee, Voorhees & Sease P.L.C. ATTN: Ecolab Inc3761%
MaxGo Law3631%
Kim IP Law Group LLC3622%
DUANE MORRIS LLP - Philadelphia3521%
ASLAN LAW, P.C.3532%
STANDLEY LAW GROUP LLP3424%
Dragon Sun Law Firm, PC3329%
KILE PARK REED & HOUTTEMAN PLLC3322%
HULTQUIST IP3325%
KRATZ, QUINTOS & HANSON, LLP3336%
COOK ALEX LTD3323%
Hudak, Shunk & Farine Co. LPA3329%
Dunlap Bennett & Ludwig PLLC3332%
Lumen Patent Firm3221%
WARE, FRESSOLA, MAGUIRE & BARBER LLP3231%
Gearhart Law LLC3223%
Bell & Manning, LLC3222%
Porus IP LLC3238%
PNJ IP Law, P.C.3256%
Edwards Neils LLC3170%
Bainwood, Huang & Associates, LLC3123%
DORITY & MANNING, P.A. and KIMBERLY-CLARK3138%
DANA - MCCOY RUSSELL LLP3145%
C. Tumey Law Group, PLLC - Exxon3191%
ARENTFOX SCHIFF LLP - Los Angeles3138%
Cermak & McGowan LLP3129%
CAHN & SAMUELS LLP3021%
SOEI USA INC.3026%
Emerson, Thomson & Bennett, LLC3023%
Harris Beach Murtha Cullina PLLC3041%
APEX JURIS, PLLC2922%
Gardner, Linn, Burkhart & Ondersma LLP2921%
Acuity Law Group, P.C.2921%
BENNETT JONES LLP2920%
Polygon IP, LLP2847%
Bay State IP, LLC2847%
THOMAS|HORSTEMEYER, LLP - UF2824%
Getech Law LLC2720%
Whitestone Law, PLLC2739%
Ascenda Law Group, PC2723%
DOWNS RACHLIN MARTIN PLLC2720%
OLIVE LAW GROUP, PLLC2630%
DUNLAP CODDING, P.C.2640%
OHLANDT, GREELEY & PERLE, LLP2635%
Law Office of Katsuhiro Arai2650%
United IP Counselors, LLC2620%
You & IP, LLC2633%
Clements Bernard Walker2620%
BURR & FORMAN - MAGNERA CORPORATION2686%
von Briesen & Roper, s.c.2620%
DAMBROSIO & MENON, P.L.L.C.2632%
Fredrikson & Byron, P. A.2539%
NYEMASTER GOODE P.C.2529%
MORRISS OBRYANT COMPAGNI CANNON, PLLC2427%
ALIX, YALE & RISTAS, LLP2420%
DAY PITNEY LLP2424%
Schott, P.C.2421%
Arent Fox LLP and Divergent Technologies Inc.2464%
USCH Law, PC2431%
Imaizumi IP Law, PLLC2420%
Nields, Lemack & Frame, LLC2431%
HYLTON-RODIC LAW PLLC2457%
Baker, Donelson, Bearman, Caldwell & Berkowitz, PC2320%
HoustonHogle LLP2321%
WEAVER AUSTIN VILLENEUVE & SAMPSON LLP2233%
Vorys-Solventum2228%
Hoffberg & Associates2231%
SIMPSON & SIMPSON, PLLC2220%
Lei Fang & Associates LLC2265%
Leech Tishman Fuscaldo & Lampl2228%
Sorell, Lenna & Schmidt, LLP2126%
MASUVALLEY & PARTNERS2123%
KC&KC LAW LLC2124%
Advent, LLP2136%
Karceski IP Law, PLLC2043%
Park, Kim & Suh, LLC2022%
Schmidt Patent Law, Inc.2042%
HARTMAN GLOBAL IP LAW2031%
K&L Gates LLP-Sony1931%
LKGLOBAL | Lorenz & Kopf, LLP (Solenis)1993%
Best & Flanagan LLP1927%
Renner Kenner Greive Bobak Taylor & Weber Co., LPA1938%
East IP P.C.1927%
Jones Day for Matthews1947%
KOKKA & BACKUS, PC1935%
Los Angeles-LADAS & PARRY1840%
Boardman & Clark LLP1846%
Heidi Brun Associates Ltd.1825%
George Morgan (Way-Insight)1840%
Saxton & Stump, LLC1829%
Ray Quinney & Nebeker1823%
Quicker Law, LLC1730%
Kilpatrick Townsend & Stockton LLP - Winston-Salem1736%
The Morales Law Firm, LLC1725%
MERCHANT & GOULD P.C. - Sciex1725%
WHITAKER CHALK SWINDLE & SCHWARTZ PLLC1729%
MILLER, CANFIELD, PADDOCK AND STONE1725%
KF ROSS PC1729%
Cantor Colburn LLP - Raytheon1725%
Flash Intellectual Property, Inc.1736%
Zilka-Kotab, PC - LYT1P1770%
Noréns Patentbyrå AB1625%
Rhodes IP PLC1680%
Medlen & Carroll, LLP1625%
Belvis Law1638%
Wolter VanDyke Davis, PLLC Mail Stop AG1640%
AKA CHAN LLP1633%
Yoo & Associates, Inc.1638%
Lewis Roca Rothgerber Christie LLP1550%
Sherwin-Williams-Tucker Ellis LLP15100%
OSAKA FRONT PATENT FIRM1571%
TechLaw Ventures, PLLC1533%
Ricky Lam - Way Insight1545%
Brannon Sowers & Cracraft PC1538%
Patterson+Sheridan, LLP1536%
MCAFEE & TAFT1542%
CENTRAL CALIFORNIA IP GROUP, P.C.1443%
Hach Company - Oliff PLC1475%
JUNEAU & MITCHELL-NC1462%
LEWIS, BRISBOIS, BISGAARD & SMITH LLP1430%
HOYNG ROKH MONEGIER B.V.1445%
Thomas E. Lees, LLC1436%
Espatent Oy1430%
Nakanishi IP Associates, LLC1420%
PARKER JUSTISS, P.C.1422%
Olson & Cepuritis, LTD.1340%
Wood IP LLC1327%
CYTIVA - Grogan, Tuccillo & Vanderleeden, LLP1370%
LUEDEKA NEELY, P.C.1325%
Padda Law Group1350%
The Neudeck Law Firm1325%
Miller Nash LLP1344%
Koivula & Somersalo LLC1338%
OConnor & Company PLLC1392%
NORTON ROSE FULBRIGHT US LLP -Essilor1255%
MH2 -DPLG1225%
DeLio Peterson & Curcio LLC1256%
Elevated IP, LLC1225%
EVAN LAW GROUP LLC1220%
BAKER & MCKENZIE LLP (Dallas account)1222%
Marietti Gislon e Trupiano Srl1250%
MacMillan, Sobanski and Todd, LLC - FIRST SOLAR12100%
PATENT CENTRAL LLC1225%
Boulware & Valoir PLLC1244%
Calderone McKay LLC1250%
Amundsen Davis, LLC1233%
Williams Mullen1244%
Adler Pollock & Sheehan P.C.1122%
Briggs Intellectual Property Law1130%
Insight Law Group, PLLC1129%
Polsinelli LLP - Ohmium International, Inc.1182%
K&L Gates LLP - Gambro1171%
Wentsler LLC1125%
Nath, Goldberg & Meyer1130%
Synergy IP Group AG1133%
Hall Estill Hardwick Gable Golden & Nelson, P.C.1122%
Jafari Law Group, Inc.1150%
MACCORD MASON PLLC1160%
CANTOR COLBURN LLP - ESSITY1175%
Billion & Armitage - Khalifa University1157%
Tracnik Law, PLLC1122%
Keller Schneider Patent-und Markenanwalte1033%
MH2 Technology Law Grp1022%
Arnold & Porter Kaye Scholer LLP - Roquette Freres1029%
Clark+Elbing LLP - 10X Genomics, Inc.1080%
CANTOR COLBURN LLP - FastCAP Systems1067%
MEREK, BLACKMON & VOORHEES, LLC1029%
Birchwood IP- CHK0011033%
Laabs Intellectual Property1050%
Murphy, Bilak & Homiller, PLLC1038%
STEVENS & SHOWALTER LLP1025%
Edmonds & Cmaidalka, P.C.1038%
VIERING, JENTSCHURA & PARTNER mbB - sonstige1033%
GOLDILOCKS ZONE IP LAW1038%
Berg Hill Greenleaf Ruscitti LLP1030%
Iandiorio Teska & Coleman, LLP1071%
HEAD, JOHNSON, KACHIGIAN & WILKINSON, PC950%
JACKSON WALKER LLP929%
Levenfeld Pearlstein, LLC922%
Foundation Law Group938%
Forge IP, PLLC929%
EAGLE IP LIMITED933%
Mills IP Law, PLLC920%
DORITY & MANNING, P.A. & W. R. Grace & Co.-Conn.980%
Nordic Patent Service925%
Parker Poe Adams & Bernstein LLP920%
COZEN O'CONNOR - DC - Gendzwill957%
Summit Patents PC (Blue)944%
Additon, Pendleton & Witherspoon, P.A.957%
MBHB - Massachusetts Institute of Technology829%
SCHROEDER INTELLECTUAL PROPERTY LAW GROUP, LLC829%
AJU IP Global PLLC860%
Finnegan, Henderson, Farabow,886%
FORTKORT & HOUSTON P.C.850%
SCHERRER PATENT & TRADEMARK LAW P.C.833%
UltimatEdge IP Law Group, P.C.833%
Law Office of Michael A. Sanzo, LLC825%
Vos-IP, LLC820%
Gemini Law LLP8100%
GLOBAL IP SERVICES, PLLC850%
GORDON & REES LLP857%
DEFILLO & ASSOCIATES, INC.825%
BUTLER SNOW LLP829%
DORITY & MANNING, PA & SOCIETE DES PRODUITS NESTLE8100%
Cantor Colburn - SABIC General8100%
Nields, Lemack & Frame, LLC - Varian843%
STOEL RIVES LLP - PDX843%
Hankin Patent Law, APC840%
Carmel Patent Agency867%
TEMMERMAN LAW843%
Ewing & Jones, PLLC833%
THE H.T. THAN LAW GROUP833%
Rauschenbach Patent Law Group, PLLC850%
METROLEX IP LAW GROUP, PLLC - JP720%
Viridant IP729%
Ray Quinney & Nebeker-Marathon Petroleum750%
Prince Lobel Tye LLP720%
Bodi Law LLC720%
CHAMBLISS, BAHNER & STOPHEL, P.C.767%
Melcher Patent Law PLLC725%
NOVOCLAIMS PATENT SERVICES LLC767%
MCKEE, VOORHEES & SEASE, PLC, Attn: ChampionX LLC725%
MacMillan, Sobanksi & Todd, LLC (BV Clients)720%
Thomas W. Galvani, P.C.750%
COZEN O'CONNOR (Alnylam)733%
NEWHOPE LAW, PC750%
GTC Law Group PC & Affiliates - Tufts733%
Pike IP Law, PLLC725%
CROCKETT & CROCKETT, PC720%
Trenner Law Firm, LLC733%
KEAN MILLER LLP750%
FOUNTAINHEAD LAW GROUP, PC757%
Franklin & Associates International Inc720%
DP IP Group733%
SMART & BIGGAR LP and Veolia WTS USA, Inc.7100%
Amatong McCoy LLC775%
MMI Intellectual Property760%
Kelley Drye & Warren LLP725%
Antoinette G Giugliano PC733%
Chong IP Law Group625%
ProPat, LLC660%
BRUNET & CO. LTD.650%
PHILLIPS LYTLE LLP620%
Sierra IP Law, PC625%
Borchers, Hall, Purks & Wall, PLLC633%
SMITH PATENT, LLC620%
Parsons Behle & Latimer620%
OBWB - Solvay (ECo)683%
DEKEL PATENT LTD., DAVID KLEIN640%
NOBLITT & NEWSON, PLLC633%
Nesbitt IP LLC680%
Dority & Manning, P.A. and O&M Halyard, Inc.640%
Meunier Carlin & Curfman LLC & Poly-Med660%
MERCHANT & GOULD - Cepheid667%
Taylor Dykema PLLC620%
HESPOS & PORCO LLP625%
The Grafe Law Office, P.C.633%
Yoshida & Associates, LLC633%
Bachmann Law Group PC625%
Marks & Clerk640%
Hoffman Warnick - GE Vernova660%
Launchpad Intellectual Property, Inc.620%
GLOBAL PATENT GROUP - MDA633%
Vitruvian IP Law LLC620%
ANGELO IP620%
GODFREY & KAHN S.C.6100%
Grell & Watson Patent Attorneys LLC625%
WEISS & WEISS640%
HelixIP LLP620%
Cantor Colburn LLP - DuPont6100%
Rooney IP, LLC640%
Brick Gentry Law Firm520%
Avyno Law P.C.540%
MBHB - BP Corporation North America Inc.575%
K&L Gates LLP - Pittsburgh525%
THE HILTON FIRM PLLC (Halliburton)567%
MCGARRY BAIR PC567%
Hahn Loeser & Parks, LLP - Chicago520%
HAMILTON IP LAW, PC575%
MOORE & VAN ALLEN PLLC for ELECTROLUX520%
CANTOR COLBURN LLP - John Crane Inc.525%
Stevens & Lee PC525%
O'Rourke IP Law P.L.L.C.525%
BLAKE, CASSELS & GRAYDON LLP533%
Sotomayor IP Consulting, Ltd.520%
IPTechLaw550%
Wong Meyer Smith & McConnell550%
COSUD INTELLECTUAL PROPERTY SOLUTIONS, P.C.520%
HEDMAN & COSTIGAN, P.C.567%
Kern Kendrick, LLC525%
KREMBLAS & FOSTER525%
LAMBERT SHORTELL & CONNAUGHTON520%
Caseiro Burke LLC567%
Hershkovitz and Associates, PLLC525%

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