C11D 1/143
Sulfonic acid esters
Official title: {Sulfonic acid esters}
C11D1/143 (Sulfonic acid esters) appears on 739 US grants and 569 published applications in this corpus.
Search patents in C11D- Granted patents
- 739
- Published applications
- 569
- Assignees
- 222
- Inventors
- 1,567
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 9 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 9 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 19 | 0 |
| 1996 | 19 | 0 |
| 1997 | 23 | 0 |
| 1998 | 41 | 0 |
| 1999 | 49 | 0 |
| 2000 | 40 | 0 |
| 2001 | 46 | 7 |
| 2002 | 33 | 17 |
| 2003 | 39 | 34 |
| 2004 | 30 | 27 |
| 2005 | 10 | 15 |
| 2006 | 11 | 17 |
| 2007 | 6 | 8 |
| 2008 | 1 | 16 |
| 2009 | 9 | 12 |
| 2010 | 11 | 15 |
| 2011 | 10 | 16 |
| 2012 | 12 | 11 |
| 2013 | 9 | 11 |
| 2014 | 9 | 15 |
| 2015 | 10 | 28 |
| 2016 | 7 | 19 |
| 2017 | 19 | 19 |
| 2018 | 9 | 30 |
| 2019 | 21 | 33 |
| 2020 | 18 | 31 |
| 2021 | 17 | 24 |
| 2022 | 19 | 32 |
| 2023 | 22 | 36 |
| 2024 | 23 | 45 |
| 2025 | 20 | 25 |
| 2026 | 25 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cleansing composition6 Oct 2026US 12,753,376 B2Conopco, Inc.
- Cleaning or hydrophilizing agent composition1 Sep 2026US 12,723,220 B2Kao Corporation
- Detergent compositions for cleaning in the cosmetic and pharmaceutical industry11 Aug 2026US 12,703,840 B2Ecolab USA Inc.
- Composition for surface treatment, surface treatment method, and method for producing semiconductor substrate28 Jul 2026US 12,692,459 B2Fujimi Incorporated
- Method and system for manufacturing a sheet of laundry detergent7 Jul 2026US 12,673,793 B2
- Self-adhesive sanitary product comprising alkyl polyglycoside8 Oct 2026US 2026/0308489 A1Henkel AG & Co. KGaA
- Hard surface cleaning compositions with reduced surface tension17 Sep 2026US 2026/0275232 A1Ecolab USA Inc.
- Composition10 Sep 2026US 2026/0265647 A1Conopco, Inc., d/b/a UNILEVER
- Liquid fabric care compositions comprising capsules20 Aug 2026US 2026/0242696 A1The Procter & Gamble Company
- Multi-layer low-foam laundry sheet and preparation method thereof23 Jul 2026US 2026/0209634 A1Guangzhou Joyson Cleaning Products Co., Ltd.
Most cited
By later US patents
- Viscoelastic surfactant fluids and related methods of use217US 6,258,859 B1Rhodia Inc. · 2001
- Viscoelastic surfactant fluids and related methods of use173US 6,703,352 B2Schlumberger Technology Corporation · 2004
- Condensation products of basic amino acids with copolymerizable compounds and a process for their production162US 6,034,204 ABASF SE · 2000
- Deparaffinization compositions and methods for their use136US 6,632,598 B1BioGenex Laboratories · 2003
- High foaming nonionic surfacant based liquid detergent134US 4,595,526 AColgate-Palmolive Company · 1986