Assignee
STEPAN CO
US·183 granted patents·62 pending applications·3,248 citations·filing 1984–2025
Top patents by PatentIndex Score
245 records- 0198US7774978B2Method of controlling the release of agricultural active ingredients from treated plant seedsSTEPAN CO·Filed 2007·Granted Aug 17, 2010·93 cites·9 claims
- 0297US7666828B2Sulfonated estolides and other derivatives of fatty acids, methods of making them, and compositions and processes employing themSTEPAN CO·Filed 2009·Granted Feb 23, 2010·66 cites·76 claims
- 0396US6492445B2Antimicrobial polymer latexes derived from unsaturated quaternary ammonium compounds and antimicrobial coatings, sealants, adhesives and elastomers produced from such latexesSTEPAN CO·Filed 2001·Granted Dec 10, 2002·83 cites·23 claims
- 0495US6768015B1Method of making alkyl esters using pressureSTEPAN CO·Filed 2003·Granted Jul 27, 2004·106 cites·10 claims
- 0595US6242526B1Antimicrobial polymer latexes derived from unsaturated quaternary ammonium compounds and antimicrobial coatings, sealants, adhesives and elastomers produced from such latexesSTEPAN CO·Filed 1998·Granted Jun 5, 2001·119 cites·42 claims
- 0694US9321985B1Laundry detergents based on compositions derived from natural oil metathesisSTEPAN CO·Filed 2015·Granted Apr 26, 2016·7 cites·4 claims
- 0794US8026206B2Low solids, high viscosity fabric softener compositions and process for making the sameSTEPAN CO·Filed 2010·Granted Sep 27, 2011·22 cites·11 claims
- 0894US6528070B1Emulsion comprising a ternary surfactant blend of cationic, anionic, and bridging surfactants, oil and water, and methods of preparing sameSTEPAN CO·Filed 2000·Granted Mar 4, 2003·113 cites·37 claims
- 0994US5945394AHeavy duty liquid detergent compositions comprising salts of α-sulfonated fatty acid methyl esters and use of α-sulphonated fatty acid salts to inhibit redeposition of soil on fabricSTEPAN CO·Filed 1996·Granted Aug 31, 1999·107 cites·8 claims
- 1093US6822105B1Method of making alkyl esters using glycerinSTEPAN CO·Filed 2003·Granted Nov 23, 2004·150 cites·18 claims
- 1193US4678515AFoam generating compositionsSTEPAN CO·Filed 1986·Granted Jul 7, 1987·74 cites·2 claims
- 1292US8344172B2Preparation of antiplasticizers for thermoplastic polyestersSTEPAN CO·Filed 2011·Granted Jan 1, 2013·8 cites·30 claims
- 1392US5922779APolyol blends for producing hydrocarbon-blown polyurethane and polyisocyanurate foamsSTEPAN CO·Filed 1997·Granted Jul 13, 1999·109 cites·14 claims
- 1492US5616781ALiquid detergent compositions comprising salts of alpha sulfonated fatty acid esters and anionic surfactantsSTEPAN CO·Filed 1995·Granted Apr 1, 1997·84 cites·4 claims
- 1592US4676835AFoam generating compositionsSTEPAN CO·Filed 1986·Granted Jun 30, 1987·68 cites·2 claims
- 1691US10590749B2Steam foam methods for steam-assisted gravity drainageSTEPAN CO·Filed 2015·Granted Mar 17, 2020·6 cites·5 claims
- 1791US10322994B2Fatty amides and derivatives from natural oil metathesisSTEPAN CO·Filed 2017·Granted Jun 18, 2019·2 cites·9 claims
- 1891US7879790B2Mixed salts of sulfonated estolides and other derivatives of fatty acids, and methods of making themSTEPAN CO·Filed 2009·Granted Feb 1, 2011·12 cites·34 claims
- 1991US6423326B1Cold-mix water-in-oil emulsions comprising quaternary ammonium compounds and process for producing sameSTEPAN CO·Filed 2000·Granted Jul 23, 2002·38 cites·28 claims
- 2091US6359022B1Pentane compatible polyester polyolsSTEPAN CO·Filed 1999·Granted Mar 19, 2002·184 cites·16 claims
- 2190US4529744ACompatibilized aromatic polyester polyolsSTEPAN CO·Filed 1984·Granted Jul 16, 1985·47 cites·17 claims
- 2289US7884064B2Light duty liquid detergent compositions of sulfonated estolides and other derivatives of fatty acidsSTEPAN CO·Filed 2009·Granted Feb 8, 2011·12 cites·36 claims
- 2389US6900265B2Antimicrobial polymer latexes derived from unsaturated quaternary ammonium compounds and antimicrobial coatings, sealants, adhesives and elastomers produced from such latexesSTEPAN CO·Filed 2002·Granted May 31, 2005·38 cites·17 claims
- 2489US5637758ALiquid detergent compositions comprising salts of alpha sulfonated fatty acid methyl esters, and anionic surfactantsSTEPAN CO·Filed 1995·Granted Jun 10, 1997·62 cites·32 claims
- 2589US5444094AMethods and compositions for disinfecting surfaces containing tuberculosis causing bacteriaSTEPAN CO·Filed 1993·Granted Aug 22, 1995·77 cites·10 claims
- 2688US11898096B2Polyester diverting agents for low-temperature oil wellsSTEPAN CO·Filed 2020·Granted Feb 13, 2024·2 cites·8 claims
- 2788US10233412B2Aqueous hard surface cleaners based on terpenes and fatty acid derivativesSTEPAN CO·Filed 2017·Granted Mar 19, 2019·3 cites·20 claims
- 2888US9796662B2Esteramines and derivatives from natural oil metathesisSTEPAN CO·Filed 2015·Granted Oct 24, 2017·3 cites·5 claims
- 2988US6306805B1Shampoo and body wash composition comprising ternary surfactant blends of cationic, anionic, and bridging surfactants and methods of preparing sameSTEPAN CO·Filed 2000·Granted Oct 23, 2001·79 cites·50 claims
- 3088US6281178B1Reduced residue hard surface cleaner comprising hydrotropeSTEPAN CO·Filed 1999·Granted Aug 28, 2001·59 cites·15 claims
- 3187US11142782B2Enhanced production of rhamnolipids using at least two carbon sourcesSTEPAN CO·Filed 2018·Granted Oct 12, 2021·4 cites·23 claims
- 3287US9573884B2Imidazoline amides and derivitives from natural oil metathesisSTEPAN CO·Filed 2015·Granted Feb 21, 2017·2 cites·17 claims
- 3387US9309345B2Aromatic polyester polyols and aromatic polyester polyol blends containing biorenewable components and methods of makingSTEPAN CO·Filed 2012·Granted Apr 12, 2016·4 cites·18 claims
- 3487US4608432ASelf-compatibilizing polyester polyol blends based on polyalkylene terephthalateSTEPAN CO·Filed 1985·Granted Aug 26, 1986·42 cites·31 claims
- 3587US4595711AAromatic polyester polyols fluorocarbon compatibilized with ethoxylate propoxylate compounds for urethane and isocyanurate foamsSTEPAN CO·Filed 1985·Granted Jun 17, 1986·38 cites·17 claims
- 3686US12398246B2Polymeric dispersants from phenyl glycidyl etherSTEPAN CO·Filed 2024·Granted Aug 26, 2025·0 cites·6 claims
- 3786US11168238B2Low VOC polyurethane adhesiveSTEPAN CO·Filed 2019·Granted Nov 9, 2021·1 cites·12 claims
- 3886US7998920B2Sulfonated estolide compositions containing magnesium sulfate and processes employing themSTEPAN CO·Filed 2009·Granted Aug 16, 2011·9 cites·44 claims
- 3986US6855844B1Phtalic anhydride based polyester-ether polyols and double metal cyanide catalyst system for preparing sameSTEPAN CO·Filed 2000·Granted Feb 15, 2005·27 cites·4 claims
- 4086US4644048ASelf-compatibilizing phthalate-based polyester polyolsSTEPAN CO·Filed 1985·Granted Feb 17, 1987·38 cites·25 claims
- 4185US10435618B2Surfactants for enhanced oil recoverySTEPAN CO·Filed 2017·Granted Oct 8, 2019·4 cites·9 claims
- 4285US6664363B1Low viscosity polyester polyols and methods for preparing sameSTEPAN CO·Filed 1999·Granted Dec 16, 2003·73 cites·16 claims
- 4385US6211257B1Open celled polyurethane foams and methods and compositions for preparing such foamsSTEPAN CO·Filed 2000·Granted Apr 3, 2001·23 cites·15 claims
- 4484US9447225B2Polyester polyols containing diels-alder or ene adductsSTEPAN CO·Filed 2014·Granted Sep 20, 2016·3 cites·7 claims
- 4584US7884057B2Polycationic viscoelastic compositionsSTEPAN CO·Filed 2008·Granted Feb 8, 2011·3 cites·18 claims
- 4684US6569352B1Phthalic anhydride based polyester-ether polyols and urethane prepolymers produced therefromSTEPAN CO·Filed 1999·Granted May 27, 2003·39 cites·7 claims
- 4784US6423303B1Water-in-oil emulsions containing increased amounts of oil and methods for preparing sameSTEPAN CO·Filed 2000·Granted Jul 23, 2002·34 cites·30 claims
- 4884US6172026B1Soap bar compositions comprising alpha sulfonated fatty acid alkyl esters and long chain fatty acidsSTEPAN CO·Filed 1999·Granted Jan 9, 2001·53 cites·10 claims
- 4984US5240639AFoaming agentSTEPAN CO·Filed 1991·Granted Aug 31, 1993·139 cites·13 claims
- 5083US11142729B2Detergents for cold-water cleaningSTEPAN CO·Filed 2019·Granted Oct 12, 2021·1 cites·13 claims
Showing the top 50 of 245 patent records by PatentIndex Score.
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