C11D 1/52
Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
Official title: Carboxylic amides, alkylolamides or imides {or their condensation products with alkylene oxides}
C11D1/52 (Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides) appears on 876 US grants and 344 published applications in this corpus.
Search patents in C11D- Granted patents
- 876
- Published applications
- 344
- Assignees
- 261
- Inventors
- 1,612
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 11 | 0 |
| 1978 | 13 | 0 |
| 1979 | 7 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 10 | 0 |
| 1987 | 14 | 0 |
| 1988 | 17 | 0 |
| 1989 | 17 | 0 |
| 1990 | 7 | 0 |
| 1991 | 10 | 0 |
| 1992 | 18 | 0 |
| 1993 | 18 | 0 |
| 1994 | 28 | 0 |
| 1995 | 40 | 0 |
| 1996 | 38 | 0 |
| 1997 | 44 | 0 |
| 1998 | 69 | 0 |
| 1999 | 81 | 0 |
| 2000 | 58 | 0 |
| 2001 | 57 | 9 |
| 2002 | 41 | 20 |
| 2003 | 36 | 29 |
| 2004 | 27 | 29 |
| 2005 | 16 | 31 |
| 2006 | 9 | 31 |
| 2007 | 8 | 19 |
| 2008 | 12 | 19 |
| 2009 | 12 | 8 |
| 2010 | 7 | 15 |
| 2011 | 8 | 5 |
| 2012 | 6 | 5 |
| 2013 | 5 | 6 |
| 2014 | 7 | 9 |
| 2015 | 10 | 13 |
| 2016 | 5 | 9 |
| 2017 | 5 | 10 |
| 2018 | 5 | 7 |
| 2019 | 4 | 10 |
| 2020 | 8 | 6 |
| 2021 | 5 | 13 |
| 2022 | 7 | 12 |
| 2023 | 11 | 8 |
| 2024 | 7 | 8 |
| 2025 | 9 | 7 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C11D 1/523Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides , where r1, r2 or375
- C11D 1/525Carboxylic amides , where r1, r2 or r3 contain two or more204
- C11D 1/528Carboxylic amides , where at least one of the chains r1, r2156
- C11D 1/521Carboxylic amides , where r1, r2 and r3 are alkyl or alkenyl127
- C11D 1/526Carboxylic amides , where r1, r2 or r3 are polyalkoxylated115
Recent patents
- Blends of N-acyl alaninates and other N-acyl amino acid surfactants and derivatives thereof22 Sep 2026US 12,742,134 B2The Procter & Gamble Company
- Hard surface cleaning compositions with reduced surface tension2 Jun 2026US 12,644,072 B2Ecolab USA Inc.
- Water-soluble cleaning agent sheet and preparation method and application method thereof5 May 2026US 12,618,020 B2Guangzhou Joyson Cleaning Products Co., Ltd.
- Multi-surfactant system electrostatically coupled to a cellulose nanocrystal comprising a cetrimonium chloride/fatty acid surfactant mixture6 Jan 2026US 12,516,268 B2The Penn State Research Foundation
- Water-based anti-odor fabric treatment compositions7 Oct 2025US 12,435,295 B1Sciessent LLC
- Hard surface cleaning compositions with reduced surface tension17 Sep 2026US 2026/0275232 A1Ecolab USA Inc.
- Etching composition and use thereof23 Jul 2026US 2026/0209640 A1Ningbo Anji Microelectronics Technology Co.
- Multi-Surfactant Systems16 Jul 2026US 2026/0201272 A1The Penn State Research Foundation
- Granules of mgda and (meth)acrylic acid homo- or co-polymer; process for making the same19 Mar 2026US 2026/0078318 A1BASF SE
- Cationic Surfactants with Improved pH Stability and Their Use29 Jan 2026US 2026/0028552 A1Locus Solutions Ipco, LLC
Most cited
By later US patents
- Mid-chain branched surfactants193US 6,020,303 AThe Procter & Gamble Company · 2000
- Mid-chain branched alkyl sulfate surfactants175US 6,060,443 AThe Procter & Gamble Company · 2000
- Detergent compositions containing selected mid-chain branched surfactants167US 6,326,348 B1The Procter & Gamble Company · 2001
- Mid-Chain branched Alkoxylated Sulfate Surfactants147US 6,008,181 AThe Procter & Gamble Company · 1999
- Polyhydroxy fatty acid amides in soil release agent-containing detergent compositions115US 5,332,528 AThe Procter & Gamble Company · 1994