C11D 3/3927
Quarternary ammonium compounds
Official title: {Quarternary ammonium compounds}
C11D3/3927 (Quarternary ammonium compounds) appears on 81 US grants and 51 published applications in this corpus.
Search patents in C11D- Granted patents
- 81
- Published applications
- 51
- Assignees
- 28
- Inventors
- 201
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 9 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 3 | 2 |
| 2005 | 3 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 3 | 4 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 7 |
| 2012 | 0 | 1 |
| 2013 | 2 | 3 |
| 2014 | 2 | 1 |
| 2015 | 1 | 2 |
| 2016 | 2 | 2 |
| 2017 | 1 | 5 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 4 |
| 2023 | 2 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Post-CMP cleaning liquid comprising a substituted benzene anticorrosive agent, chelant, and amine compound24 Mar 2026US 12,588,450 B2FUJIFILM Corporation
- Detergent composition, substrate cleaning method, and cleaning method for support or substrate17 Dec 2024US 12,168,759 B2Shin-Etsu Chemical Co., Ltd.
- Cleaning composition12 Mar 2024US 11,926,805 B2The Procter & Gamble Company
- Bleach activator having a cationic group and washing or cleaning agent containing same26 Sep 2023US 11,767,493 B2Henkel AG & Co. KGaA
- Solid cleaner with benzalkonium chloride, PEG-8, and Guar17 Jan 2023US 11,555,165 B2Henkel AG & Co. KGaA
- Cleaning and disinfecting wipes with enhanced thickness perception8 Oct 2026US 2026/0308491 A1The Clorox Company
- Composition, home care formulations, method and use6 Nov 2025US 2025/0340801 A1Croda International PLC
- Liquid composition2 Oct 2025US 2025/0304887 A1Kao Corporation
- Liquid formulation comprising an alcohol and highly water soluble manganese complex salt catalyst, bleaching formulation and cleaning agent comprising the same20 Feb 2025US 2025/0059474 A1Catexel Limited
- Stripper composition19 Sep 2024US 2024/0309298 A1Dongwoo Fine-Chem Co., Ltd.
Most cited
By later US patents
- Detergent compositions comprising multiperacid-forming bleach activators219US 5,595,967 AThe Procter & Gamble Company · 1997
- Multiple component bleaching compositions88US 6,391,840 B1Unilever Home & Personal Care USA, Division of Conopco, Inc. · 2002
- Laundry treatment product87US 5,160,654 ALever Brothers Company, Division of Conopco, Inc. · 1992
- Quaternary ammonium or phosphonium substituted peroxy carbonic acid precursors and their use in detergent bleach compositions81US 4,751,015 ALever Brothers Company · 1988
- Ester perhydrolysis by preconcentration of ingredients80US 5,143,641 ALever Brothers Company, Division of Conopco, Inc. · 1992