Prosecution Insights
Last updated: October 08, 2026

Chemistry & Materials: Law Firms

463 law firms with pending patent office actions in this technology area (USPTO Tech Center 1700) • 43,525 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, PLLC2,78826%
BIRCH STEWART KOLASCH & BIRCH, LLP2,08035%
OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P.1,75932%
Morgan, Lewis & Bockius LLP (WA)1,75825%
OLIFF PLC1,58528%
HARNESS DICKEY (DETROIT)1,08727%
HAUPTMAN HAM, LLP90622%
WENDEROTH, LIND & PONACK, L.L.P.85131%
LEYDIG VOIT & MAYER, LTD83924%
DINSMORE & SHOHL LLP75222%
WHDA, LLP71558%
WOMBLE BOND DICKINSON (US) LLP66626%
BUCHANAN, INGERSOLL & ROONEY PC66429%
THE WEBB LAW FIRM, P.C.62829%
MAIER & MAIER, PLLC60931%
HARNESS, DICKEY & PIERCE, P.L.C.60724%
GREENBLUM & BERNSTEIN, P.L.C.59346%
FAEGRE DRINKER BIDDLE & REATH LLP (DC)52820%
Anova Law Group, PLLC49632%
DORITY & MANNING, P.A.44724%
GREER, BURNS & CRAIN, LTD44624%
RANKIN, HILL & CLARK LLP42530%
Fox Rothschild LLP41323%
Bryan Cave Leighton Paisner LLP (DC)40651%
FITCH EVEN TABIN & FLANNERY, LLP39034%
HSML P.C.36823%
RENNER, OTTO, BOISSELLE & SKLAR, LLP35724%
CKC & Partners Co., LLC34423%
IP & T GROUP LLP33948%
K&L Gates LLP27633%
NOVICK, KIM & LEE, PLLC, dba NKL Law27129%
K&L Gates LLP-Chicago26433%
Lerner David LLP25938%
Bayramoglu Law Offices LLC25521%
Dickinson Wright PLLC - Washington DC24924%
SNELL & WILMER L.L.P. (Main)24840%
Ladas & Parry LLP24738%
MCCOY RUSSELL LLP24321%
LUCAS & MERCANTI, LLP23927%
Secant IP, PLLC23727%
MH2 TECHNOLOGY LAW GROUP, LLP23022%
Chrisman Gallo Tochtrop LLC22629%
PANITCH SCHWARZE BELISARIO & NADEL LLP21429%
CARTER, DELUCA & FARRELL LLP21031%
MILLEN, WHITE, ZELANO & BRANIGAN, P.C.19831%
ARENTFOX SCHIFF LLP - New York19722%
Rimon PC - MWE19225%
Westbridge IP LLC19227%
LEX IP MEISTER, PLLC19021%
STINSON LLP18421%
Rimon PC - Panasonic Corporation17529%
Element IP, PLC17471%
KENJA IP LAW PC16971%
Calfee, Halter & Griswold LLP16938%
SQUIRE PB (SFR Office)16725%
Grüneberg Global IP, PLLC16652%
SHUMAKER, LOOP & KENDRICK, LLP16623%
Ipsilon USA - NLO16035%
Hovey Williams LLP15624%
Burr & Forman LLP (Primary Customer Number)15432%
HAYES SOLOWAY P.C.15228%
MERCHANT & GOULD P.C. - BAT15190%
K&L Gates LLP-Nestec S.A.15146%
AMSTER, ROTHSTEIN & EBENSTEIN LLP15026%
LIPPES MATHIAS LLP15029%
TRASKBRITT, P.C.14723%
WOOD, HERRON & EVANS, LLP14730%
EVERSHEDS SUTHERLAND (US) LLP14628%
HESLIN ROTHENBERG FARLEY & MESITI PC14522%
Davidson Kappel LLC14136%
FisherBroyles, LLP14023%
Li & Cai Intellectual Property(USA) office13420%
ANDRUS INTELLECTUAL PROPERTY LAW, LLP13323%
STITES & HARBISON PLLC13027%
Solaris Intellectual Property Group, PLLC12630%
Maynard Nexsen PC (GREENVILLE OFFICE)12434%
LEE IP LAW, P.C.12383%
Alleman Hall LLP11629%
MUETING RAASCH GROUP11635%
MOSER TABOADA11527%
THORPE NORTH & WESTERN, LLP.11327%
Harvest IP Law, LLP11241%
COLLARD & ROE, P.C.11121%
Abel Schillinger, LLP11137%
Boone IP Law, PLLC10980%
Hoffmann & Baron LLP10725%
OSTROLENK FABER LLP10040%
McBee Moore & Vanik, IP, LLC9843%
Vorys, Sater, Seymour and Pease LLP9829%
Cantor Colburn LLP - General Motors9733%
AVEK IP, LLC (OP Orig)9622%
The Dobrusin Law Firm P.C.9146%
Wiersch Law Group9123%
REISING ETHINGTON P.C.9121%
SUGHRUE-2655509135%
Cushman Partners, LLC8954%
DILWORTH IP, LLC8824%
Renaissance IP Law Group LLP (SSI)8821%
Jordan IP Law, LLC8832%
WARNER NORCROSS + JUDD LLP8722%
WTA IP Law P.C.8223%
WSP Law Group8121%
BOND, SCHOENECK & KING, PLLC8122%
The Sun IP Law8026%
MARSHALL & MELHORN, LLC8037%
IP GROUP OF DLA PIPER LLP (US)7944%
Barclay Damon, LLP7724%
Quinn IP Law7628%
IDEA Intellectual Limited7535%
J-TEK LAW PLLC7425%
DICKE, BILLIG & CZAJA7421%
Duane Morris LLP (UDC)7285%
SZDC Law P.C.7144%
SMITH, GAMBRELL & RUSSELL7121%
MCGINN INTELLECTUAL PROPERTY LAW GROUP, PLLC7137%
BENESCH, FRIEDLANDER, COPLAN & ARONOFF LLP7132%
Laine IP Oy7135%
LKGLOBAL (GM)6920%
Steinfl + Bruno LLP6821%
MILES & STOCKBRIDGE PC6831%
K&L GATES LLP-Pittsburgh6521%
VIKSNINS HARRIS PADYS MALEN LLP6524%
Venjuris, P.C.6435%
Farber LLC6326%
Kolitch Romano Dascenzo Gates LLP6323%
Li & Cai Intellectual Property Office6335%
RMCK Law Group, PLC6120%
Christensen, Fonder, Dardi & Busse PLLC5944%
PatShegen IP5832%
CARRIER SHENDE AND ASSOCIATES PC5844%
Harness, Dickey & Pierce-Altria5834%
Cantor Colburn LLP - Collins Aerospace5624%
Silvia Salvadori, P.C.5622%
Dority & Manning, P.A. and GEC-Aviation5620%
Robinson Intellectual Property Law Office, P.C.5423%
DUANE MORRIS LLP - Boca Raton5422%
Davis Wright Tremaine LLP - Seattle5426%
Dykema Gossett PLLC5426%
IPSILON USA5226%
United One Law Group LLC5231%
PATTERSON Intellectual Property Law, P.C.5227%
CURATOLO SIDOTI & TRILLIS CO., LPA5059%
PDSD LAW5030%
JCIP GLOBAL INC.5025%
Stevens Law Group5023%
SHUTTLEWORTH & INGERSOLL, P.L.C.4923%
NOTARO, MICHALOS & ZACCARIA P.C.4824%
KILYK & BOWERSOX, P.L.L.C.4839%
Taft Law4824%
Smartpat PLC4820%
PEACOCK LAW P.C.4741%
FLYNN THIEL, P.C.4738%
BOSE MCKINNEY & EVANS LLP4726%
Warner Norcross + Judd LLP - IP Group4583%
Cantor Colburn LLP - SABIC Americas4494%
MCNEES WALLACE & NURICK LLC4431%
TAYLOR & EDELSTEIN4455%
True Shepherd, LLC (S)4433%
Rimon PC - ABE4393%
Dority & Manning, P.A. and Ticona LLC4367%
GABLEGOTWALS4327%
Law Offices of James Zhou4322%
DORSEY & WHITNEY LLP - Minneapolis4322%
PORTER WRIGHT MORRIS & ARTHUR, LLP4326%
Dorsey & Whitney - SLC4226%
Sandberg Phoenix & von Gontard, PC4123%
Capitol City TechLaw, PLLC4132%
STETINA GARRED BRUCKER & NEWBOLES4121%
Shackelford, Bowen, McKinley & Norton (Amini)4024%
KATTEN MUCHIN ROSENMAN LLP3943%
FERENCE & ASSOCIATES LLC3921%
SERVILLA WHITNEY LLC3921%
Cabinet Beau de Lomenie3837%
Walters & Wasylyna (Boeing)3862%
Mori & Ward, LLP3824%
UB GREENSFELDER LLP3842%
Kim IP Law Group LLC3723%
DUANE MORRIS LLP - Philadelphia3621%
McKee, Voorhees & Sease P.L.C. ATTN: Ecolab Inc3662%
HULTQUIST IP3623%
FGTL3531%
Cook Alex Ltd.3526%
MaxGo Law3530%
Dunlap Bennett & Ludwig PLLC3433%
AMIN WASSERMAN GURNANI LLP3320%
ASLAN LAW, P.C.3333%
Gearhart Law LLC3326%
KRATZ, QUINTOS & HANSON, LLP3341%
ARENTFOX SCHIFF LLP - Los Angeles3340%
Dragon Sun Law Firm, PC3333%
Hudak, Shunk & Farine Co. LPA3227%
Bell & Manning, LLC3226%
Porus IP LLC3237%
Edwards Neils LLC3270%
Cermak & McGowan LLP3227%
Ascenda Law Group, PC3133%
PNJ IP Law, P.C.3162%
C. Tumey Law Group, PLLC - Exxon3191%
WARE, FRESSOLA, MAGUIRE & BARBER LLP3133%
KILE PARK REED & HOUTTEMAN PLLC3023%
USCH Law, PC3039%
Acuity Law Group, P.C.3021%
BENNETT JONES LLP3020%
Bay State IP, LLC2944%
Emerson, Thomson & Bennett, LLC2924%
You & IP, LLC2937%
APEX JURIS, PLLC2926%
DORITY & MANNING, P.A. and KIMBERLY-CLARK2936%
Gardner, Linn, Burkhart & Ondersma LLP2921%
Law Office of Katsuhiro Arai2953%
DANA - MCCOY RUSSELL LLP2950%
Polygon IP, LLP2945%
SOEI USA INC.2825%
HYLTON-RODIC LAW PLLC2852%
OLIVE LAW GROUP, PLLC2830%
THOMAS|HORSTEMEYER, LLP - UF2724%
Whitestone Law, PLLC2741%
Harris Beach Murtha Cullina PLLC2732%
Kutak Rock LLP2721%
Arent Fox LLP and Divergent Technologies Inc.2665%
NYEMASTER GOODE P.C.2630%
DOWNS RACHLIN MARTIN PLLC2620%
DAMBROSIO & MENON, P.L.L.C.2528%
Fredrikson & Byron, P. A.2539%
OHLANDT, GREELEY & PERLE, LLP2532%
BURR & FORMAN - MAGNERA CORPORATION2586%
von Briesen & Roper, s.c.2521%
Schott, P.C.2525%
Clements Bernard Walker2422%
DAY PITNEY LLP2424%
Lei Fang & Associates LLC2467%
United IP Counselors, LLC2423%
Vorys-Solventum2428%
ALIX, YALE & RISTAS, LLP2327%
DUNLAP CODDING, P.C.2341%
HoustonHogle LLP2321%
Karceski IP Law, PLLC2338%
Imaizumi IP Law, PLLC2320%
Schmidt Patent Law, Inc.2346%
KC&KC LAW LLC2329%
Nields, Lemack & Frame, LLC2327%
Sorell, Lenna & Schmidt, LLP2226%
Leech Tishman Fuscaldo & Lampl2228%
Heidi Brun Associates Ltd.2222%
SIMPSON & SIMPSON, PLLC2121%
K&L Gates LLP-Sony2129%
WEAVER AUSTIN VILLENEUVE & SAMPSON LLP2138%
CANTOR COLBURN LLP-BAKER HUGHES OILFIELD2120%
The Morales Law Firm, LLC2125%
Best & Flanagan LLP2125%
MASUVALLEY & PARTNERS2023%
Poseidon Advanced IP LLC2020%
KOKKA & BACKUS, PC2033%
Quicker Law, LLC2030%
Hoffberg & Associates1931%
Ray Quinney & Nebeker1923%
George Morgan (Way-Insight)1944%
Park, Kim & Suh, LLC1925%
HARTMAN GLOBAL IP LAW1933%
Advent, LLP1933%
LKGLOBAL | Lorenz & Kopf, LLP (Solenis)1993%
Kilpatrick Townsend & Stockton LLP - Winston-Salem1933%
Saxton & Stump, LLC1929%
MCAFEE & TAFT1838%
Butzel Long1820%
Los Angeles-LADAS & PARRY1840%
Jones Day for Matthews1850%
Renner Kenner Greive Bobak Taylor & Weber Co., LPA1842%
East IP P.C.1827%
Rhodes IP PLC1877%
Hach Company - Oliff PLC1879%
Zilka-Kotab, PC - LYT1P1873%
Wolter VanDyke Davis, PLLC Mail Stop AG1840%
Flash Intellectual Property, Inc.1736%
Boardman & Clark LLP1746%
Yoo & Associates, Inc.1736%
KF ROSS PC1729%
Espatent Oy1742%
Miller Johnson1620%
Medlen & Carroll, LLP1625%
MERCHANT & GOULD P.C. - Sciex1627%
Belvis Law1638%
HOYNG ROKH MONEGIER B.V.1645%
Cantor Colburn LLP - Raytheon1627%
PARKER JUSTISS, P.C.1520%
Ricky Lam - Way Insight1545%
Noréns Patentbyrå AB1525%
Nakanishi IP Associates, LLC1520%
Koivula & Somersalo LLC1538%
THE WATSON IP GROUP, PLC1520%
CYTIVA - Grogan, Tuccillo & Vanderleeden, LLP1575%
LUEDEKA NEELY, P.C.1525%
OSAKA FRONT PATENT FIRM1569%
Patterson+Sheridan, LLP1536%
Brannon Sowers & Cracraft PC1538%
MH2 -DPLG1520%
TechLaw Ventures, PLLC1533%
Sherwin-Williams-Tucker Ellis LLP14100%
AKA CHAN LLP1430%
Thomas E. Lees, LLC1436%
Olson & Cepuritis, LTD.1440%
Padda Law Group1445%
Elevated IP, LLC1425%
OConnor & Company PLLC1392%
Hall Estill Hardwick Gable Golden & Nelson, P.C.1320%
The Neudeck Law Firm1325%
CENTRAL CALIFORNIA IP GROUP, P.C.1343%
Lewis Roca Rothgerber Christie LLP1358%
LEWIS, BRISBOIS, BISGAARD & SMITH LLP1322%
DeLio Peterson & Curcio LLC1340%
Miller Nash LLP1344%
Williams Mullen1344%
JUNEAU & MITCHELL-NC1362%
Amundsen Davis, LLC1333%
EVAN LAW GROUP LLC1220%
PATENT CENTRAL LLC1225%
NORTON ROSE FULBRIGHT US LLP -Essilor1264%
Nath, Goldberg & Meyer1227%
Calderone McKay LLC1250%
Culhane Meadows PLLC1227%
Boulware & Valoir PLLC1244%
Wood IP LLC1230%
Adler Pollock & Sheehan P.C.1220%
Jafari Law Group, Inc.1250%
Synergy IP Group AG1230%
Birchwood IP- CHK0011130%
Cantor Colburn - SABIC General11100%
Briggs Intellectual Property Law1130%
MACCORD MASON PLLC1160%
MacMillan, Sobanski and Todd, LLC - FIRST SOLAR11100%
Maenner & Associates, LLC1122%
Wentsler LLC1125%
Murphy, Bilak & Homiller, PLLC1133%
K&L Gates LLP - Gambro1162%
GOLDILOCKS ZONE IP LAW1138%
Laabs Intellectual Property1150%
Arnold & Porter Kaye Scholer LLP - Roquette Freres1129%
Foundation Law Group1130%
Polsinelli LLP - Ohmium International, Inc.1182%
EAGLE IP LIMITED1129%
Berg Hill Greenleaf Ruscitti LLP1127%
COZEN O'CONNOR - DC - Gendzwill1156%
BAKER & MCKENZIE LLP (Dallas account)1022%
JACKSON WALKER LLP1029%
Iandiorio Teska & Coleman, LLP1071%
CANTOR COLBURN LLP - ESSITY1086%
Marietti Gislon e Trupiano Srl1050%
VIERING, JENTSCHURA & PARTNER mbB - sonstige1025%
Rauschenbach Patent Law Group, PLLC1038%
Nordic Patent Service1025%
CANTOR COLBURN LLP - FastCAP Systems1067%
THE H.T. THAN LAW GROUP1033%
Billion & Armitage - Khalifa University1067%
Tracnik Law, PLLC922%
Saunders McKeon PLLC920%
Antoinette G Giugliano PC933%
CROCKETT & CROCKETT, PC920%
Keller Schneider Patent-und Markenanwalte925%
Forge IP, PLLC929%
AJU IP Global PLLC950%
Finnegan, Henderson, Farabow,986%
Summit Patents PC (Blue)944%
Clark+Elbing LLP - 10X Genomics, Inc.978%
DORITY & MANNING, P.A. & W. R. Grace & Co.-Conn.980%
FOUNTAINHEAD LAW GROUP, PC950%
DEFILLO & ASSOCIATES, INC.925%
GORDON & REES LLP967%
Additon, Pendleton & Witherspoon, P.A.957%
UltimatEdge IP Law Group, P.C.833%
Edmonds & Cmaidalka, P.C.843%
Borchers, Hall, Purks & Wall, PLLC825%
Prince Lobel Tye LLP820%
FORTKORT & HOUSTON P.C.850%
BUTLER SNOW LLP829%
Gemini Law LLP8100%
TEMMERMAN LAW843%
DORITY & MANNING, PA & SOCIETE DES PRODUITS NESTLE8100%
Hankin Patent Law, APC840%
METROLEX IP LAW GROUP, PLLC - JP825%
HEAD, JOHNSON, KACHIGIAN & WILKINSON, PC857%
Alliance IP, LLC - General820%
SMART & BIGGAR LP and Veolia WTS USA, Inc.8100%
SCHROEDER INTELLECTUAL PROPERTY LAW GROUP, LLC829%
Carmel Patent Agency867%
COZEN O'CONNOR (Alnylam)825%
Zhu Lehnhoff LLP829%
STOEL RIVES LLP - PDX850%
Ewing & Jones, PLLC833%
KEAN MILLER LLP750%
Law Office of Michael A. Sanzo, LLC733%
Hoffman Warnick - GE Vernova767%
MCKEE, VOORHEES & SEASE, PLC, Attn: ChampionX LLC725%
HelixIP LLP720%
Melcher Patent Law PLLC725%
MMI Intellectual Property760%
GTC Law Group PC & Affiliates - Tufts733%
Nields, Lemack & Frame, LLC - Varian733%
GLOBAL IP SERVICES, PLLC750%
NOVOCLAIMS PATENT SERVICES LLC767%
ProPat, LLC760%
Ray Quinney & Nebeker-Marathon Petroleum750%
SCHERRER PATENT & TRADEMARK LAW P.C.733%
Chong IP Law Group725%
Sierra IP Law, PC725%
SMITH PATENT, LLC720%
The Grafe Law Office, P.C.725%
Thomas W. Galvani, P.C.750%
Viridant IP729%
Amatong McCoy LLC775%
Trenner Law Firm, LLC640%
Yoshida & Associates, LLC633%
Dority & Manning, P.A. and O&M Halyard, Inc.640%
DP IP Group633%
CHAMBLISS, BAHNER & STOPHEL, P.C.660%
Polsinelli LLP - Pegasus Solar (085127)620%
Pike IP Law, PLLC633%
PHILLIPS LYTLE LLP620%
Bachmann Law Group PC625%
Parsons Behle & Latimer620%
OBWB - Solvay (ECo)683%
GLOBAL PATENT GROUP - MDA633%
GODFREY & KAHN S.C.6100%
NEWHOPE LAW, PC667%
Nesbitt IP LLC680%
ANGELO IP620%
WEISS & WEISS640%
Meunier Carlin & Curfman LLC & Poly-Med660%
MERCHANT & GOULD - Cepheid667%
Kelley Drye & Warren LLP633%
Marks & Clerk640%
Wong Meyer Smith & McConnell675%
IP Delta Plus Inc.625%
BRUNET & CO. LTD.633%
Stevens & Lee PC625%
Cantor Colburn LLP - DuPont6100%
DEKEL PATENT LTD., DAVID KLEIN640%
Rooney IP, LLC640%
Sherman IP LLP525%
MCGARRY BAIR PC567%
COSUD INTELLECTUAL PROPERTY SOLUTIONS, P.C.520%
Brick Gentry Law Firm520%
SDIP LLC575%
Scott T. Griggs, Attorneys at Law533%
BLAKE, CASSELS & GRAYDON LLP533%
K&L Gates LLP - Pittsburgh525%
Kern Kendrick, LLC525%
IPTechLaw550%
MBHB - BP Corporation North America Inc.575%
Caseiro Burke LLC567%
Dority & Manning, P.A. & Northrop Grumman520%
Grell & Watson Patent Attorneys LLC525%
Sotomayor IP Consulting, Ltd.520%
Accelerate IP525%
MOORE & VAN ALLEN PLLC for ELECTROLUX520%
HAMILTON IP LAW, PC575%
Platinum Intellectual Property PC533%
Baird Holm LLP525%
Avyno Law P.C.540%
Foley & Lardner LLP - Tokyo Electron560%
HEDMAN & COSTIGAN, P.C.567%
Taylor Dykema PLLC525%
O'Rourke IP Law P.L.L.C.525%
Hershkovitz and Associates, PLLC525%

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