C11D 3/42
Brightening agents
Official title: Brightening agents {; Blueing agents}
C11D3/42 (Brightening agents) appears on 488 US grants and 490 published applications in this corpus.
Search patents in C11D- Granted patents
- 488
- Published applications
- 490
- Assignees
- 107
- Inventors
- 1,000
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 11 | 0 |
| 1991 | 7 | 0 |
| 1992 | 15 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 12 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 25 | 0 |
| 1999 | 15 | 0 |
| 2000 | 18 | 0 |
| 2001 | 7 | 2 |
| 2002 | 9 | 9 |
| 2003 | 11 | 10 |
| 2004 | 4 | 15 |
| 2005 | 7 | 15 |
| 2006 | 4 | 16 |
| 2007 | 7 | 18 |
| 2008 | 3 | 15 |
| 2009 | 9 | 21 |
| 2010 | 10 | 17 |
| 2011 | 10 | 16 |
| 2012 | 13 | 22 |
| 2013 | 11 | 13 |
| 2014 | 13 | 21 |
| 2015 | 20 | 42 |
| 2016 | 11 | 28 |
| 2017 | 18 | 24 |
| 2018 | 18 | 49 |
| 2019 | 17 | 36 |
| 2020 | 34 | 23 |
| 2021 | 24 | 14 |
| 2022 | 13 | 15 |
| 2023 | 4 | 17 |
| 2024 | 10 | 12 |
| 2025 | 11 | 9 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water-soluble unit dose article comprising a fibrous non-woven sheet and a hueing dye particle25 Aug 2026US 12,716,043 B2The Procter & Gamble Company
- Laundry treatment cartridge16 Jun 2026US 12,655,372 B2The Procter & Gamble Company
- Detergent formulations17 Feb 2026US 12,553,009 B2The Procter & Gamble Company
- Laundry composition and preparation method therefor13 Jan 2026US 12,522,789 B2Foshan Magic Crystal Technology Development Co., Ltd.
- Personal and home care compositions comprising fatty acids from tung seed oil as antimicrobial preservative6 Jan 2026US 12,514,800 B2Galaxy Surfactants Ltd.
- Method of laundering fabrics1 Oct 2026US 2026/0297470 A1The Procter & Gamble Company
- Liquid composition with perfume capsules1 Oct 2026US 2026/0297474 A1The Procter & Gamble Company
- Composition and method to prevent or reduce splashing on use of a toilet and/or facilitate toilet cleanliness24 Sep 2026US 2026/0286258 A1Bubl-Revolutionary Toilets Solution Ltd.
- Detergent formulations21 May 2026US 2026/0139199 A1The Procter & Gamble Company
- Stabilizing system for laundry emulsions7 May 2026US 2026/0125619 A1Ecolab USA Inc.
Most cited
By later US patents
- Detergent compositions containing polyglycoside and polyethoxylate detergent surfactants111US 4,483,780 AThe Procter & Gamble Company · 1984
- Detergent compositions comprising polyglycoside and polyethoxylate surfactants and anionic fluorescer105US 4,483,779 AThe Procter & Gamble Company · 1984
- Liquid detergent composition containing bleach74US 4,430,236 ATexize, Division of MortonThiokol · 1984
- Process for preparing brightener-containing liquid detergent compositions with polyhydroxy fatty acid amines73US 5,174,927 AThe Procter & Gamble Company · 1992
- Dryer-added fabric treatment article of manufacture containing antioxidant and sunscreen compounds for sun fade protection of fabrics68US 5,474,691 AThe Procter & Gamble Company · 1995