C09K 23/24
Amides of higher fatty acids with aminoalkylated sulfonic acids
C09K23/24 (Amides of higher fatty acids with aminoalkylated sulfonic acids) appears on 14 US grants and 10 published applications in this corpus.
Search patents in C09K- Granted patents
- 14
- Published applications
- 10
- Assignees
- 14
- Inventors
- 55
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for the aqueous extraction of biosurfactants from corn steep liquor12 Aug 2025US 12,383,847 B2Universidade De Vigo
- Treatment fluid recipe for high temperature multi-stage fracturing applications26 Mar 2024US 11,939,516 B2Saudi Arabian Oil Company
- Fatty amides and derivatives from natural oil metathesis18 Jun 2019US 10,322,994 B2Stepan Company
- Imidazoline amides and derivitives from natural oil metathesis21 Feb 2017US 9,573,884 B2Stepan Company
- Fatty amides and derivatives from natural oil metathesis3 Nov 2015US 9,175,245 B2Stepan Company
- Solid emulsifiers, drilling fluids, and methods of making and using the same27 Mar 2025US 2025/0101309 A1
- Treatment fluid recipe for high temperature multi-stage fracturing applications21 Sep 2023US 2023/0295481 A1Saudi Arabian Oil Company
- Process for the aqueous extraction of biosurfactants from corn steep liquor30 Jun 2022US 2022/0203262 A1Universidade De Vigo
- Fatty amides and derivatives from natural oil metathesis8 Jun 2017US 2017/0158617 A1Stepan Company
- Fatty amides and derivatives from natural oil metathesis31 Dec 2015US 2015/0376118 A1Stepan Company
Most cited
By later US patents
- Polyelectrolyte dispersants for hydrophobic particles in water-based systems21US 6,395,804 B13M Innovative Properties Company · 2002
- Chiral surfactants and methods for their use in chiral separations17US 6,090,250 AWaters Investments Limited · 2000
- Grinding or dispersing agents for pigments13US 4,450,013 ABASF SE · 1984
- Fatty acid and amide wetting agents for pesticide formulations3US 5,167,694 AWestvaco Corporation · 1992
- Fatty amides and derivatives from natural oil metathesis1US 10,322,994 B2Stepan Company · 2019