C11D 3/392
Heterocyclic compounds
Official title: {Heterocyclic compounds, e.g. cyclic imides or lactames}
C11D3/392 (Heterocyclic compounds) appears on 155 US grants and 102 published applications in this corpus.
Search patents in C11D- Granted patents
- 155
- Published applications
- 102
- Assignees
- 56
- Inventors
- 333
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 5 | 2 |
| 2003 | 1 | 2 |
| 2004 | 4 | 2 |
| 2005 | 2 | 5 |
| 2006 | 0 | 4 |
| 2007 | 2 | 5 |
| 2008 | 3 | 5 |
| 2009 | 4 | 5 |
| 2010 | 1 | 2 |
| 2011 | 3 | 11 |
| 2012 | 3 | 3 |
| 2013 | 1 | 3 |
| 2014 | 3 | 4 |
| 2015 | 2 | 5 |
| 2016 | 4 | 6 |
| 2017 | 1 | 7 |
| 2018 | 3 | 4 |
| 2019 | 1 | 8 |
| 2020 | 3 | 3 |
| 2021 | 3 | 2 |
| 2022 | 3 | 4 |
| 2023 | 2 | 3 |
| 2024 | 3 | 3 |
| 2025 | 0 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Granules comprising protonated triazacyclic compounds and bleaching agent and cleaning agent comprising the same17 Mar 2026US 12,577,505 B2Catexel Limited
- Solid free-flowing particulate laundry detergent composition6 Jan 2026US 12,516,274 B2The Procter & Gamble Company
- Process for removing dry surface biofilm18 Jun 2024US 12,012,574 B2Whiteley Corporation Pty. Ltd.
- Automatic dishwashing method4 Jun 2024US 11,999,926 B2The Procter & Gamble Company
- Automatic dishwashing method12 Mar 2024US 11,926,806 B2The Procter & Gamble Company
- Bleach Catalyst and Composition Comprising Said Catalyst24 Sep 2026US 2026/0286254 A1Reckitt Benckiser Vanish B.V.
- Bleach Catalyst With Improved Performance, Granule Comprising The Bleach Catalyst, And Composition Comprising Said Catalyst Or Said Granule17 Sep 2026US 2026/0275249 A1Reckitt Benckiser Vanish B.V.
- Liquid composition2 Oct 2025US 2025/0304887 A1Kao Corporation
- Manganese Bleach Catalyst Granules23 Jan 2025US 2025/0027013 A1Novozymes A/S
- Dishwashing detergents and use thereof31 Oct 2024US 2024/0360389 A1Catexel Limited
Most cited
By later US patents
- Color-safe bleach boosters, compositions and laundry methods employing same297US 5,576,282 AThe Procter & Gamble Company · 1996
- Bleaching compounds and compositions comprising fatty peroxyacids salts thereof and precursors therefor having amide moieties in the fatty chain154US 4,634,551 AThe Procter & Gamble Company · 1987
- Peracid and bleach activator compounds and use thereof in cleaning compositions121US 4,681,592 AThe Procter & Gamble Company · 1987
- Peroxygen bleach activators and bleaching compositions95US 4,483,778 AThe Procter & Gamble Company · 1984
- Multiple component bleaching compositions88US 6,391,840 B1Unilever Home & Personal Care USA, Division of Conopco, Inc. · 2002