Stepan Company
Patents, Design & Utilities

Last updated:

List of all Stepan Company patents 68 in total

Status Patent
Grant
Utility: Agricultural compositions containing structured surfactant systems External link
Filling date: 6 Sep 2025 Issue date: 13 Sep 2022
Application
Utility: POLYESTER DIVERTING AGENTS FOR LOW-TEMPERATURE OIL WELLS External link
Filling date: 6 Sep 2025 Issue date: 11 Aug 2022
Application
Utility: NON-AQUEOUS SOLDER FLUX COMPOSITION External link
Filling date: 6 Sep 2025 Issue date: 21 Jul 2022
Application
Utility: REACTIVE SURFACTANTS External link
Filling date: 6 Sep 2025 Issue date: 9 Jun 2022
Application
Utility: Systems and Methods for Computer Vision Assisted Foam Board Processing External link
Filling date: 6 Sep 2025 Issue date: 24 Mar 2022
Application
Utility: Esteramine Compositions External link
Filling date: 6 Sep 2025 Issue date: 17 Mar 2022
Grant
Utility: Friction reducer for hydraulic fracturing External link
Filling date: 6 Sep 2025 Issue date: 15 Mar 2022
Application
Utility: POLYOL-EPOXIDE POLYMERS FOR NVH DAMPING APPLICATIONS External link
Filling date: 6 Sep 2025 Issue date: 10 Feb 2022
Application
Utility: COMPOSITIONS TO STABILIZE ASPHALTENES IN PETROLEUM FLUIDS External link
Filling date: 6 Sep 2025 Issue date: 3 Feb 2022
Application
Utility: ENHANCED PRODUCTION OF RHAMNOLIPIDS USING AT LEAST TWO CARBON SOURCES External link
Filling date: 6 Sep 2025 Issue date: 30 Dec 2021
Grant
Utility: Low viscosity polyols for polyurethane applications External link
Filling date: 6 Sep 2025 Issue date: 28 Dec 2021
Grant
Utility: Corrosion inhibitors for oilfield applications External link
Filling date: 6 Sep 2025 Issue date: 21 Dec 2021
Grant
Utility: Compositions to stabilize asphaltenes in petroleum fluids External link
Filling date: 6 Sep 2025 Issue date: 23 Nov 2021
Grant
Utility: Low VOC polyurethane adhesive External link
Filling date: 6 Sep 2025 Issue date: 9 Nov 2021
Grant
Utility: Detergents for cold-water cleaning External link
Filling date: 6 Sep 2025 Issue date: 12 Oct 2021
Grant
Utility: Enhanced production of rhamnolipids using at least two carbon sources External link
Filling date: 6 Sep 2025 Issue date: 12 Oct 2021
Application
Utility: ONE-COMPONENT ADHESIVE COMPOSITIONS External link
Filling date: 6 Sep 2025 Issue date: 7 Oct 2021
Application
Utility: HARDNESS AND FLATNESS TESTER External link
Filling date: 6 Sep 2025 Issue date: 9 Sep 2021
Grant
Utility: Promoted membrane for single-ply roofing External link
Filling date: 6 Sep 2025 Issue date: 7 Sep 2021
Grant
Utility: Composition for disinfecting surfaces containing tuberculosis causing bacteria External link
Filling date: 6 Sep 2025 Issue date: 17 Aug 2021
Grant
Utility: Microemulsion flowback aids for oilfield uses External link
Filling date: 6 Sep 2025 Issue date: 20 Jul 2021
Grant
Utility: Polyether-epoxide polymer compositions External link
Filling date: 6 Sep 2025 Issue date: 20 Jul 2021
Grant
Utility: Isocyanate-modified polyester-epoxide polymer compositions External link
Filling date: 6 Sep 2025 Issue date: 13 Jul 2021
Grant
Utility: Process for enzymatic production of triglycerides External link
Filling date: 6 Sep 2025 Issue date: 18 May 2021
Grant
Utility: Hardness and flatness tester External link
Filling date: 6 Sep 2025 Issue date: 18 May 2021
Application
Utility: REDUCED-RESIDUE HARD SURFACE CLEANER AND METHOD FOR DETERMINING FILM/STREAK External link
Filling date: 6 Sep 2025 Issue date: 13 May 2021
Application
Utility: Esterquat Compositions External link
Filling date: 6 Sep 2025 Issue date: 6 May 2021
Grant
Utility: Steam foam methods for steam-assisted gravity drainage External link
Filling date: 6 Sep 2025 Issue date: 27 Apr 2021
Application
Utility: DEMULSIFYING METHOD FOR DRILLING FLUIDS External link
Filling date: 6 Sep 2025 Issue date: 22 Apr 2021
Grant
Utility: Synergistic surfactant blends External link
Filling date: 6 Sep 2025 Issue date: 20 Apr 2021
Application
Utility: ALKYL SULFATE / ALKYL ETHER SULFATE GYPSUM FOAMER External link
Filling date: 6 Sep 2025 Issue date: 15 Apr 2021
Grant
Utility: Method for preparing 2-monoacylglycerides External link
Filling date: 6 Sep 2025 Issue date: 30 Mar 2021
Application
Utility: DECOLORIZATION OF CONCENTRATED RHAMNOLIPID COMPOSITION External link
Filling date: 6 Sep 2025 Issue date: 11 Feb 2021
Application
Utility: POLYOL BLENDS AND RIGID FOAMS WITH IMPROVED LOW-TEMPERATURE R-VALUES External link
Filling date: 6 Sep 2025 Issue date: 28 Jan 2021
Grant
Utility: Polyester-epoxide polymer compositions External link
Filling date: 6 Sep 2025 Issue date: 5 Jan 2021
Application
Utility: SOLID-SOLID PHASE-CHANGE MATERIALS External link
Filling date: 6 Sep 2025 Issue date: 3 Dec 2020
Grant
Utility: Decolorization of concentrated rhamnolipid composition External link
Filling date: 6 Sep 2025 Issue date: 10 Nov 2020
Application
Utility: Polyols for Low-VOC Polyurethane Applications External link
Filling date: 6 Sep 2025 Issue date: 5 Nov 2020
Application
Utility: UNSATURATED FATTY ALCOHOL DERIVATIVES FROM NATURAL OIL METATHESIS External link
Filling date: 6 Sep 2025 Issue date: 5 Nov 2020
Grant
Utility: Branched alkyl sulfate gypsum foamer External link
Filling date: 6 Sep 2025 Issue date: 6 Oct 2020
Grant
Utility: Polyetheramine compositions for laundry detergents External link
Filling date: 6 Sep 2025 Issue date: 22 Sep 2020
Application
Utility: MICROEMULSION FLOWBACK AIDS FOR OILFIELD USES External link
Filling date: 6 Sep 2025 Issue date: 27 Aug 2020
Grant
Utility: Unsaturated fatty alcohol derivatives from natural oil metathesis External link
Filling date: 6 Sep 2025 Issue date: 18 Aug 2020
Application
Utility: POLYMERIC DISPERSANTS FROM ARALKYLATED PHENOLS External link
Filling date: 6 Sep 2025 Issue date: 13 Aug 2020
Application
Utility: POLYMERIC DISPERSANTS FROM PHENYL GLYCIDYL ETHER External link
Filling date: 6 Sep 2025 Issue date: 16 Jul 2020
Application
Utility: HARDNESS AND FLATNESS TESTER External link
Filling date: 6 Sep 2025 Issue date: 9 Jul 2020
Grant
Utility: Agricultural compositions with reduced aquatic toxicity External link
Filling date: 6 Sep 2025 Issue date: 30 Jun 2020
Application
Utility: Corrosion Inhibitors for Oilfield Applications External link
Filling date: 6 Sep 2025 Issue date: 25 Jun 2020
Application
Utility: FRICTION REDUCER FOR HYDRAULIC FRACTURING External link
Filling date: 6 Sep 2025 Issue date: 18 Jun 2020
Application
Utility: Agricultural Compositions Containing Structured Surfactant Systems External link
Filling date: 6 Sep 2025 Issue date: 11 Jun 2020

Showing 1 to 50 of 68 patents.