C09K 23/02
Alkyl sulfonates or sulfuric acid ester salts derived from monohydric alcohols
C09K23/02 (Alkyl sulfonates or sulfuric acid ester salts derived from monohydric alcohols) appears on 104 US grants and 75 published applications in this corpus.
Search patents in C09K- Granted patents
- 104
- Published applications
- 75
- Assignees
- 72
- Inventors
- 334
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 3 |
| 2003 | 4 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 3 |
| 2010 | 1 | 3 |
| 2011 | 1 | 4 |
| 2012 | 2 | 1 |
| 2013 | 1 | 3 |
| 2014 | 3 | 4 |
| 2015 | 3 | 1 |
| 2016 | 1 | 3 |
| 2017 | 3 | 3 |
| 2018 | 3 | 4 |
| 2019 | 0 | 1 |
| 2020 | 3 | 6 |
| 2021 | 2 | 6 |
| 2022 | 2 | 10 |
| 2023 | 3 | 5 |
| 2024 | 7 | 4 |
| 2025 | 7 | 5 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition with mixed C13-C14 alcohols and surfactants22 Sep 2026US 12,742,120 B2Dow Global Technologies LLC
- Aqueous emulsifier package with anionic surfactant for fuel emulsion27 Jan 2026US 12,534,678 B2BASF SE
- Surfactant formulations for aqueous foam stability at high temperature and high salinity conditions14 Oct 2025US 12,441,940 B1Dow Global Technologies LLC
- Nanoparticle-surfactant stabilized foams23 Sep 2025US 12,421,442 B2Cnergreen Corp.
- Olefin sulfonates19 Aug 2025US 12,391,867 B2Chevron Oronite Company LLC
- Bubble-containing hydraulic composition25 Jun 2026US 2026/0176204 A1Kao Corporation
- Nanoparticle-surfactant stabilized foams25 Dec 2025US 2025/0388802 A1Cnergreen Corp.
- Polyanionic surfactants and methods of making and using thereof20 Nov 2025US 2025/0354063 A1Chevron U.S.A.Inc.
- Water-soluble foaming agent for making bubble solution and method for preparing same3 Apr 2025US 2025/0109336 A1Taizhou Sunup Tech. Co., Ltd.
- Alkaline suspending systems constructed from hydrotropes and amines3 Apr 2025US 2025/0109337 A1Stepan Company
Most cited
By later US patents
- Surfactant compositions and uses therefor215US 6,302,209 B1BJ Services Company · 2001
- Producing foamed gypsum board using a foaming agent blend182US 5,643,510 AUSG Corporation · 1997
- Foaming agent composition and process80US 5,714,001 AGEO Specialty Chemicals, Inc. · 1998
- Foaming agent73US 5,240,639 AStepan Company · 1993
- Supercritical fluid reverse micelle separation70US 5,266,205 ABattelle Memorial Institute · 1993