C11D 3/3776
Heterocyclic compounds
Official title: {Heterocyclic compounds, e.g. lactam}
C11D3/3776 (Heterocyclic compounds) appears on 489 US grants and 463 published applications in this corpus.
Search patents in C11D- Granted patents
- 489
- Published applications
- 463
- Assignees
- 149
- Inventors
- 1,332
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 14 | 0 |
| 1998 | 23 | 0 |
| 1999 | 32 | 0 |
| 2000 | 22 | 0 |
| 2001 | 30 | 3 |
| 2002 | 25 | 27 |
| 2003 | 29 | 33 |
| 2004 | 19 | 23 |
| 2005 | 13 | 20 |
| 2006 | 15 | 26 |
| 2007 | 12 | 19 |
| 2008 | 11 | 13 |
| 2009 | 6 | 18 |
| 2010 | 11 | 26 |
| 2011 | 10 | 14 |
| 2012 | 17 | 15 |
| 2013 | 19 | 16 |
| 2014 | 11 | 17 |
| 2015 | 11 | 17 |
| 2016 | 14 | 21 |
| 2017 | 10 | 26 |
| 2018 | 10 | 17 |
| 2019 | 13 | 21 |
| 2020 | 13 | 14 |
| 2021 | 9 | 15 |
| 2022 | 7 | 11 |
| 2023 | 11 | 14 |
| 2024 | 7 | 14 |
| 2025 | 10 | 10 |
| 2026 | 5 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Non-woven fabric containing a disinfecting agent and method for producing the same4 Aug 2026US 12,698,457 B2Glatfelter Gernsbach GmbH
- Surface treatment composition, surface treatment method, and method for producing semiconductor substrate24 Mar 2026US 12,584,083 B2Fujimi Incorporated
- Effervescent compositions and solutions prepared from the same10 Mar 2026US 12,570,925 B2Colgate-Palmolive Company
- Dissolvable solid structure having first and second layers3 Feb 2026US 12,540,238 B2The Procter & Gamble Company
- Laundry composition and preparation method therefor13 Jan 2026US 12,522,789 B2Foshan Magic Crystal Technology Development Co., Ltd.
- Surfactant Potentiators for Ethoxylated Surfactants1 Oct 2026US 2026/0297459 A1Arxada AG
- Cleaning composition1 Oct 2026US 2026/0297463 A13M Innovative Properties Company
- Unit dose compositions, methods of making the unit dose compositions as a unified solid13 Aug 2026US 2026/0234513 A1Church & Dwight Co., Inc.
- Biodegradable graft polymers for dye transfer inhibition16 Jul 2026US 2026/0201279 A1BASF SE
- Non-pulverulent solid composition comprising at least 8% by weight of disintegrant(s)9 Jul 2026US 2026/0191756 A1
Most cited
By later US patents
- Cleaning wipes115US 6,340,663 B12002
- Laundry cleansing and conditioning compositions103US 6,949,498 B2Unilever Home & Personal Care USA, Division of Conopco, Inc. · 2005
- Enzyme-containing granules coated with hydrolyzed polyvinyl alcohol or copolymer thereof91US 5,324,649 AGenencor International, Inc. · 1994
- Urea-hydrogen peroxide-polyvinylpyrrolidone89US 5,183,901 AISP Investments Inc. · 1993
- Concentrated quaternary ammonium fabric softener compositions containing cationic polymers66US 6,492,322 B1The Procter & Gamble Company · 2002