C09K 23/34
Higher-molecular-weight carboxylic acid esters
Official title: Higher-molecular-weight carboxylic acid esters (esters of higher fatty acids with hydroxyalkylated sulfonic acids or salts thereof C09K23/06)
C09K23/34 (Higher-molecular-weight carboxylic acid esters) appears on 239 US grants and 177 published applications in this corpus.
Search patents in C09K- Granted patents
- 239
- Published applications
- 177
- Assignees
- 198
- Inventors
- 704
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 9 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 10 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 13 | 0 |
| 1999 | 13 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 4 |
| 2002 | 9 | 5 |
| 2003 | 4 | 7 |
| 2004 | 1 | 8 |
| 2005 | 2 | 5 |
| 2006 | 4 | 9 |
| 2007 | 3 | 5 |
| 2008 | 3 | 4 |
| 2009 | 1 | 5 |
| 2010 | 4 | 8 |
| 2011 | 2 | 7 |
| 2012 | 8 | 5 |
| 2013 | 3 | 4 |
| 2014 | 6 | 8 |
| 2015 | 2 | 1 |
| 2016 | 4 | 8 |
| 2017 | 5 | 3 |
| 2018 | 4 | 4 |
| 2019 | 4 | 8 |
| 2020 | 5 | 10 |
| 2021 | 4 | 9 |
| 2022 | 6 | 18 |
| 2023 | 8 | 13 |
| 2024 | 9 | 6 |
| 2025 | 7 | 9 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dispersions29 Sep 2026US 12,747,394 B2Lankem Ltd.
- Freeze-thaw stable water-in-oil emulsion cleaner and/or polish compositions21 Jul 2026US 12,686,793 B2S. C. Johnson & Son, Inc.
- Water-in-silicone emulsion based liquid cleaner30 Dec 2025US 12,509,646 B2W.M. Barr & Company, Inc.
- Sulfobetaine monomers, process for preparing same, and uses thereof4 Nov 2025US 12,459,889 B2Snf Group
- Polymeric amidoamine emulsifiers22 Jul 2025US 12,365,824 B2Schlumberger Technology Corporation
- Emulsifiers formed from polyol esters of fatty acids6 Aug 2026US 2026/0225991 A1
- Emulsifier and emulsion stabilizer comprising crosslinked polyester elastomer30 Jul 2026US 2026/0218054 A1
- Nanoemulsions of plant based jelly16 Jul 2026US 2026/0201252 A1Conopco, Inc., d/b/a UNILEVER
- Novel sulfobetaine monomers, process for preparing same, and uses thereof5 Feb 2026US 2026/0035343 A1Snf Group
- Surfactants having pefa compounds and methods of use thereof4 Dec 2025US 2025/0368664 A1
Most cited
By later US patents
- Process for preparing stable oil-in-water emulsions148US 4,254,104 AShiseido Company, Ltd. · 1981
- Vegetable oil emulsion121US 3,966,632 AG. D. Searle & Co. · 1976
- Nanoemulsion based on ethoxylated fatty ethers or on ethoxylated fatty esters and its uses in the cosmetics, dermatological and/or ophthalmological fields106US 6,375,960 B1L'oreal · 2002
- Environmentally friendly water based drilling fluids76US 5,707,940 AThe Lubrizol Corporation · 1998
- Hair-treating microemulsion composition and method of preparing and using the same68US 5,077,040 AHelene Curtis, Inc. · 1991