Prosecution Insights
Last updated: October 25, 2026

Chemistry & Materials: Law Firms

434 law firms with pending patent office actions in this technology area (USPTO Tech Center 1700) • 45,222 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, PLLC2,67425%
BIRCH STEWART KOLASCH & BIRCH, LLP2,03934%
Morgan, Lewis & Bockius LLP (WA)1,67924%
OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P.1,67732%
OLIFF PLC1,54229%
JCIPRNET1,47220%
CANTOR COLBURN LLP1,15221%
Xsensus1,13121%
HARNESS DICKEY (DETROIT)1,01029%
HAUPTMAN HAM, LLP86925%
WENDEROTH, LIND & PONACK, L.L.P.82529%
LEYDIG VOIT & MAYER, LTD80624%
DINSMORE & SHOHL LLP69621%
WHDA, LLP68761%
WOMBLE BOND DICKINSON (US) LLP65323%
BUCHANAN, INGERSOLL & ROONEY PC62034%
THE WEBB LAW FIRM, P.C.60827%
MAIER & MAIER, PLLC58234%
GREENBLUM & BERNSTEIN, P.L.C.57242%
HARNESS, DICKEY & PIERCE, P.L.C.54921%
FAEGRE DRINKER BIDDLE & REATH LLP (DC)48917%
Anova Law Group, PLLC47038%
DORITY & MANNING, P.A.43422%
GREER, BURNS & CRAIN, LTD41624%
RANKIN, HILL & CLARK LLP39827%
Fox Rothschild LLP39424%
Bryan Cave Leighton Paisner LLP (DC)38951%
FITCH EVEN TABIN & FLANNERY, LLP37627%
HSML P.C.36322%
RENNER, OTTO, BOISSELLE & SKLAR, LLP35024%
CKC & Partners Co., LLC32324%
IP & T GROUP LLP29546%
SoraIP, Inc.29525%
Snell & Wilmer (ASM IP Holding B.V.)27539%
K&L Gates LLP27444%
NOVICK, KIM & LEE, PLLC, dba NKL Law27229%
K&L Gates LLP-Chicago25935%
Lerner David LLP24742%
Ladas & Parry LLP24638%
Bayramoglu Law Offices LLC24222%
LUCAS & MERCANTI, LLP24024%
Secant IP, PLLC23722%
Dickinson Wright PLLC - Washington DC23426%
Barron & Young PLLC22920%
Chrisman Gallo Tochtrop LLC22824%
MH2 TECHNOLOGY LAW GROUP, LLP21120%
BLANK ROME LLP20720%
PANITCH SCHWARZE BELISARIO & NADEL LLP20029%
CARTER, DELUCA & FARRELL LLP19527%
MILLEN, WHITE, ZELANO & BRANIGAN, P.C.19234%
Westbridge IP LLC18729%
PVIP18720%
LEX IP MEISTER, PLLC18324%
Element IP, PLC18073%
Rimon PC - MWE17226%
MERCHANT & GOULD P.C. - BAT17085%
Rimon PC - Panasonic Corporation16836%
SQUIRE PB (SFR Office)16523%
KENJA IP LAW PC16473%
Hovey Williams LLP16222%
Burr & Forman LLP (Primary Customer Number)16131%
Ipsilon USA - NLO16033%
SHUMAKER, LOOP & KENDRICK, LLP15820%
Grüneberg Global IP, PLLC15259%
HAYES SOLOWAY P.C.15023%
Calfee, Halter & Griswold LLP14733%
AMSTER, ROTHSTEIN & EBENSTEIN LLP14728%
LIPPES MATHIAS LLP14127%
K&L Gates LLP-Nestec S.A.13644%
Davidson Kappel LLC13237%
EVERSHEDS SUTHERLAND (US) LLP13232%
Solaris Intellectual Property Group, PLLC13023%
WOOD, HERRON & EVANS, LLP12924%
ANDRUS INTELLECTUAL PROPERTY LAW, LLP12723%
FisherBroyles, LLP12626%
LEE IP LAW, P.C.12485%
TRASKBRITT, P.C.12326%
STITES & HARBISON PLLC12027%
MUETING RAASCH GROUP11934%
Maynard Nexsen PC (GREENVILLE OFFICE)11728%
Abel Schillinger, LLP11335%
THORPE NORTH & WESTERN, LLP.11224%
COLLARD & ROE, P.C.11123%
MOSER TABOADA10729%
Boone IP Law, PLLC10470%
Harvest IP Law, LLP10344%
HONIGMAN LLP10221%
Dority & Manning, P.A. and Haier US Appliance10025%
Alleman Hall LLP10024%
McBee Moore & Vanik, IP, LLC9842%
Hoffmann & Baron LLP9426%
AVEK IP, LLC (OP Orig)9321%
Cantor Colburn LLP - General Motors9344%
Wiersch Law Group9222%
DILWORTH IP, LLC9129%
OSTROLENK FABER LLP9036%
Vorys, Sater, Seymour and Pease LLP8929%
Jordan IP Law, LLC8734%
The Dobrusin Law Firm P.C.8640%
Renaissance IP Law Group LLP (SSI)8523%
Vivacqua Crane8521%
IP GROUP OF DLA PIPER LLP (US)8248%
SUGHRUE-2655508237%
The PL Law Group, PLLC8125%
Cushman Partners, LLC8049%
BOND, SCHOENECK & KING, PLLC8022%
The Sun IP Law8036%
MCGINN INTELLECTUAL PROPERTY LAW GROUP, PLLC7735%
MARSHALL & MELHORN, LLC7427%
IDEA Intellectual Limited7143%
Barclay Damon, LLP7026%
J-TEK LAW PLLC6923%
SMITH, GAMBRELL & RUSSELL6925%
BENESCH, FRIEDLANDER, COPLAN & ARONOFF LLP6936%
K&L GATES LLP-Pittsburgh6820%
Quinn IP Law6630%
ipPivot IP Agency6620%
Laine IP Oy6535%
Bachman & LaPointe, P.C.6520%
RMCK Law Group, PLC6324%
SZDC Law P.C.6338%
Armis Intellectual Property Law, LLC6324%
NGUYEN TARBET IP Law6321%
CARRIER SHENDE AND ASSOCIATES PC6255%
Farber LLC6229%
MILES & STOCKBRIDGE PC6233%
Duane Morris LLP (UDC)6284%
Faegre Drinker Biddle & Reath LLP - W.L. Gore6122%
Christensen, Fonder, Dardi & Busse PLLC6042%
Harness, Dickey & Pierce-Altria6037%
BOYLE FREDRICKSON S.C.5921%
Li & Cai Intellectual Property Office5933%
PatShegen IP5831%
Venjuris, P.C.5729%
JCIP GLOBAL INC.5727%
Kolitch Romano Dascenzo Gates LLP5627%
Silvia Salvadori, P.C.5627%
SAND, SEBOLT & WERNOW CO., LPA5522%
Davis Wright Tremaine LLP - Seattle5332%
Cherson Feldenkrais IP Law Firm LLP5323%
Egbert, McDaniel & Swartz, PLLC5225%
United One Law Group LLC5124%
DUANE MORRIS LLP - Boca Raton4920%
CURATOLO SIDOTI & TRILLIS CO., LPA4959%
Cantor Colburn LLP - SABIC Americas4992%
Dykema Gossett PLLC4949%
Smartpat PLC4825%
MENDELSOHN DUNLEAVY, P.C.4821%
True Shepherd, LLC (S)4736%
SHUTTLEWORTH & INGERSOLL, P.L.C.4726%
IPSILON USA4728%
PEACOCK LAW P.C.4735%
PDSD LAW4624%
FLYNN THIEL, P.C.4633%
KILYK & BOWERSOX, P.L.L.C.4530%
TAYLOR & EDELSTEIN4548%
Rimon PC - ABE4391%
Rimon PC4322%
MACMILLAN SOBANSKI & TODD, LLC4323%
STETINA GARRED BRUCKER & NEWBOLES4122%
MCNEES WALLACE & NURICK LLC4127%
Sandberg Phoenix & von Gontard, PC4031%
PORTER WRIGHT MORRIS & ARTHUR, LLP4023%
Capitol City TechLaw, PLLC4021%
Taft Law3928%
GABLEGOTWALS3921%
SOEI USA INC.3828%
Warner Norcross + Judd LLP - IP Group3887%
Cabinet Beau de Lomenie3738%
KATTEN MUCHIN ROSENMAN LLP3735%
UB GREENSFELDER LLP3625%
DUANE MORRIS LLP - Philadelphia3623%
Dority & Manning, P.A. and Ticona LLC3680%
MaxGo Law3640%
FERENCE & ASSOCIATES LLC3526%
Cook Alex Ltd.3527%
OYEN, WIGGS, GREEN & MUTALA LLP3524%
HULTQUIST IP3421%
Kim IP Law Group LLC3421%
ASLAN LAW, P.C.3435%
Dunlap Bennett & Ludwig PLLC3441%
KRATZ, QUINTOS & HANSON, LLP3436%
Acuity Law Group, P.C.3321%
Mori & Ward, LLP3321%
CAESAR RIVISE, PC3225%
Edwards Neils LLC3259%
Lumen Patent Firm3123%
DORITY & MANNING, P.A. and KIMBERLY-CLARK3132%
Gearhart Law LLC3130%
OLIVE LAW GROUP, PLLC3131%
Adams & Reese LH3021%
You & IP, LLC3030%
PNJ IP Law, P.C.3047%
Porus IP LLC3041%
Walters & Wasylyna (Boeing)3063%
McKee, Voorhees & Sease P.L.C. ATTN: Ecolab Inc3069%
ARENTFOX SCHIFF LLP - Los Angeles3043%
Polygon IP, LLP2936%
WARE, FRESSOLA, MAGUIRE & BARBER LLP2932%
FGTL2934%
APEX JURIS, PLLC2821%
Bay State IP, LLC2829%
C. Tumey Law Group, PLLC - Exxon2889%
DOWNS RACHLIN MARTIN PLLC2825%
Harris Beach Murtha Cullina PLLC2821%
Liang & Hennessey LLP2821%
NYEMASTER GOODE P.C.2822%
USCH Law, PC2825%
Whitestone Law, PLLC2830%
Hudak, Shunk & Farine Co. LPA2730%
Kutak Rock LLP2722%
Bell & Manning, LLC2725%
Cantor Colburn LLP - Carrier2722%
Cognition IP, P.C.2722%
Law Office of Katsuhiro Arai2658%
OHLANDT, GREELEY & PERLE, LLP2623%
Lei Fang & Associates LLC2560%
Leber IP Law2532%
IPspeedy Intellectual Property Inc.2524%
HYLTON-RODIC LAW PLLC2560%
CAHN & SAMUELS LLP2524%
Bainwood, Huang & Associates, LLC2520%
Schott, P.C.2524%
Fredrikson & Byron, P. A.2425%
DANA - MCCOY RUSSELL LLP2442%
MORRISS OBRYANT COMPAGNI CANNON, PLLC2425%
Sorell, Lenna & Schmidt, LLP2425%
Clements Bernard Walker2425%
DAY PITNEY LLP2421%
DUNLAP CODDING, P.C.2326%
Butzel Long2322%
WEAVER AUSTIN VILLENEUVE & SAMPSON LLP2336%
Nields, Lemack & Frame, LLC2223%
Quicker Law, LLC2268%
Hoffberg & Associates2227%
Best & Flanagan LLP2233%
George Morgan (Way-Insight)2223%
K&L Gates LLP-Sony2229%
The Morales Law Firm, LLC2238%
Karceski IP Law, PLLC2138%
KC&KC LAW LLC2129%
ALIX, YALE & RISTAS, LLP2120%
Park, Kim & Suh, LLC2126%
Schmidt Patent Law, Inc.2138%
BURR & FORMAN - MAGNERA CORPORATION2190%
KOKKA & BACKUS, PC2020%
Rhodes IP PLC2075%
MEYER UNKOVIC & SCOTT LLP2025%
Leech Tishman Fuscaldo & Lampl2025%
MCAFEE & TAFT1932%
Advent, LLP1937%
Zilka-Kotab, PC - LYT1P1989%
Brannon Sowers & Cracraft PC1939%
Haukaas Fortius PLLC1921%
East IP P.C.1926%
THOT PATENT1921%
Jones Day for Matthews1947%
Arent Fox LLP and Divergent Technologies Inc.1963%
Espatent Oy1939%
CANTOR COLBURN LLP-BAKER HUGHES OILFIELD1824%
Renner Kenner Greive Bobak Taylor & Weber Co., LPA1839%
KF ROSS PC1833%
Ray Quinney & Nebeker1822%
EVENTIDE LAW LLC1822%
TechLaw Ventures, PLLC1724%
Koivula & Somersalo LLC1735%
Flash Intellectual Property, Inc.1741%
WELSH FLAXMAN & GITLER LLC1633%
HARTMAN GLOBAL IP LAW1638%
Synergy IP Group AG1520%
Torrey Pines Law Group, PC1520%
OSAKA FRONT PATENT FIRM1567%
KRIEGSMAN & KRIEGSMAN1520%
Hach Company - Oliff PLC1580%
MH2 -DPLG1533%
Wolter VanDyke Davis, PLLC Mail Stop AG1547%
Los Angeles-LADAS & PARRY1529%
LKGLOBAL | Lorenz & Kopf, LLP (Solenis)1593%
Shackelford, McKinley & Norton, LLP1527%
HOYNG ROKH MONEGIER B.V.1533%
MERCHANT & GOULD P.C. - Sciex1421%
Belvis Law1436%
Padda Law Group1438%
Koffsky Schwalb LLC1421%
CYTIVA - Grogan, Tuccillo & Vanderleeden, LLP1479%
Culhane Meadows PLLC1421%
Maenner & Associates, LLC1429%
Summit Patents PC (Blue)1358%
Nath, Goldberg & Meyer1323%
CANTOR COLBURN LLP - ESSITY1362%
Verlo IP LLC1325%
Yoo & Associates, Inc.1338%
Law Offices of Sandy Lipkin1323%
OConnor & Company PLLC1385%
Adler Pollock & Sheehan P.C.1323%
DUANE MORRIS LLP - Quest Diagnostics1325%
Williams Mullen1346%
Boardman & Clark LLP1331%
Ricky Lam - Way Insight1258%
Olson & Cepuritis, LTD.1250%
DORITY & MANNING, PA & SOCIETE DES PRODUITS NESTLE12100%
SCHERRER PATENT & TRADEMARK LAW P.C.1236%
Miller Nash LLP1250%
JUNEAU & MITCHELL-NC1258%
Calderone McKay LLC1250%
Jafari Law Group, Inc.1250%
K&L Gates LLP - Gambro1242%
Sherwin-Williams-Tucker Ellis LLP1292%
Blanchard Horton PLLC1120%
Finnegan, Henderson, Farabow,1191%
AJU IP Global PLLC1160%
Berg Hill Greenleaf Ruscitti LLP1136%
Hall Estill Hardwick Gable Golden & Nelson, P.C.1127%
Keller Schneider Patent-und Markenanwalte1136%
GOLDILOCKS ZONE IP LAW1145%
Laabs Intellectual Property1120%
Medlen & Carroll, LLP1127%
EVAN LAW GROUP LLC1127%
Boulware & Valoir PLLC1155%
EAGLE IP LIMITED1136%
Amundsen Davis, LLC1136%
Rauschenbach Patent Law Group, PLLC1127%
Thomas E. Lees, LLC1127%
STEVENS & SHOWALTER LLP1020%
Hoffman Warnick - GE Vernova1070%
Levenfeld Pearlstein, LLC1030%
Lewis Roca Rothgerber Christie LLP1050%
MACCORD MASON PLLC1056%
GORDON & REES LLP1033%
Foundation Law Group1020%
FORTKORT & HOUSTON P.C.1030%
Murphy, Bilak & Homiller, PLLC1020%
NORTON ROSE FULBRIGHT US LLP -Essilor1070%
DeLio Peterson & Curcio LLC1040%
REMENICK PLLC1030%
Clark+Elbing LLP - 10X Genomics, Inc.1080%
CENTRAL CALIFORNIA IP GROUP, P.C.1050%
CANTOR COLBURN LLP - FastCAP Systems1070%
Cantor Colburn - SABIC General1090%
Arnold & Porter Kaye Scholer LLP - Roquette Freres1020%
Wood IP LLC1030%
Additon, Pendleton & Witherspoon, P.A.1060%
JACKSON WALKER LLP1020%
COZEN O'CONNOR (Alnylam)933%
Forge IP, PLLC922%
Briggs Intellectual Property Law922%
Wentsler LLC922%
Antoinette G Giugliano PC922%
Law Office of Michael A. Sanzo, LLC956%
Saunders McKeon PLLC922%
ASEM IP COUNSEL922%
DEFILLO & ASSOCIATES, INC.933%
Hankin Patent Law, APC944%
Marietti Gislon e Trupiano Srl944%
TIAJOLOFF & KELLY LLP922%
OBWB - Solvay (ECo)989%
Jayne Saydah, Esq., LLC944%
Birchwood IP- CHK001922%
Gemini Law LLP989%
COZEN O'CONNOR - DC - Gendzwill850%
Polsinelli LLP - Ohmium International, Inc.862%
NOVOCLAIMS PATENT SERVICES LLC838%
BAKER & MCKENZIE LLP (Dallas account)825%
UltimatEdge IP Law Group, P.C.825%
ProPat, LLC825%
MMI Intellectual Property838%
STOEL RIVES LLP - PDX850%
Stevens & Lee PC829%
Matney Legal Group PLLC825%
DORITY & MANNING, P.A. & W. R. Grace & Co.-Conn.786%
Rooney IP, LLC733%
Edmonds & Cmaidalka, P.C.743%
Carmel Patent Agency729%
Ewing & Jones, PLLC729%
Cantor Colburn LLP - DuPont7100%
Nexus IP Law PLLC729%
FOUNTAINHEAD LAW GROUP, PC743%
MERCHANT & GOULD - Cepheid771%
Billion & Armitage - Khalifa University771%
The Grafe Law Office, P.C.757%
Zhu Lehnhoff LLP729%
WEISS & WEISS729%
Keisen Associates729%
Wong Meyer Smith & McConnell757%
GODFREY & KAHN S.C.667%
BLAKE, CASSELS & GRAYDON LLP640%
Trenner Law Firm, LLC633%
Scott T. Griggs, Attorneys at Law633%
HEAD, JOHNSON, KACHIGIAN & WILKINSON, PC633%
Viridant IP633%
WALKER & JOCKE633%
Iandiorio Teska & Coleman, LLP683%
Kelley Drye & Warren LLP633%
Wiersch IP Law620%
KEAN MILLER LLP650%
Meunier Carlin & Curfman LLC & Poly-Med633%
NEWHOPE LAW, PC667%
SMART & BIGGAR LP and Veolia WTS USA, Inc.6100%
Melcher Patent Law PLLC620%
MCKEE, VOORHEES & SEASE, PLC, Attn: ChampionX LLC650%
GLOBAL IP SERVICES, PLLC633%
THE H.T. THAN LAW GROUP667%
O'Rourke IP Law P.L.L.C.620%
Thomas W. Galvani, P.C.633%
GTC Law Group PC & Affiliates - Tufts650%
Central Coast Patent Agency, LLC633%
MacMillan, Sobanski and Todd, LLC - FIRST SOLAR6100%
MCGARRY BAIR PC540%
Accelerate IP520%
DANE IP Law PC520%
IP Delta Plus Inc.520%
DEKEL PATENT LTD., DAVID KLEIN540%
Nissen Patent Law520%
IPTechLaw520%
COSUD INTELLECTUAL PROPERTY SOLUTIONS, P.C.520%
SCHLEE IP INTERNATIONAL, P.C.520%
Pike IP Law, PLLC540%
Grell & Watson Patent Attorneys LLC520%
MBHB - BP Corporation North America Inc.560%
Metz Lewis Brodman Must O'Keefe550%
PAUL AND PAUL540%
BRUNET & CO. LTD.540%
Incubate IP540%
Caseiro Burke LLC560%
DP IP Group520%
Taylor Dykema PLLC520%
Foley & Lardner LLP - Tokyo Electron560%
Stradley Ronon520%
CHAMBLISS, BAHNER & STOPHEL, P.C.540%
SDIP LLC560%
FisherBroyles, LLP - CW General550%
Dority & Manning, P.A. and O&M Halyard, Inc.550%
Avyno Law P.C.540%
Ray Quinney & Nebeker-Marathon Petroleum5100%

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