C07C 303/14
By sulfoxidation, i.e. by reaction with sulfur dioxide and oxygen with formation
Official title: by sulfoxidation, i.e. by reaction with sulfur dioxide and oxygen with formation of sulfo or halosulfonyl groups
C07C303/14 (By sulfoxidation, i.e. by reaction with sulfur dioxide and oxygen with formation) appears on 22 US grants and 17 published applications in this corpus.
Search patents in C07C- Granted patents
- 22
- Published applications
- 17
- Assignees
- 20
- Inventors
- 96
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 4 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 2 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Efficient conversion of methane to methanesulfonic acid via trifluoroacetylsulfuric acid16 Dec 2025US 12,497,354 B2University of Southern California
- Unsaturated fatty alcohol derivatives from natural oil metathesis19 Sep 2023US 11,760,889 B2Stepan Company
- Process for the manufacturing of alkanesulfonic acids15 Feb 2022US 11,247,967 B2BASF SE
- Process for making renewable surfactant intermediates and surfactants from fats and oils and products thereof13 Oct 2020US 10,800,975 B2The Procter & Gamble Company
- Unsaturated fatty alcohol derivatives from natural oil metathesis18 Aug 2020US 10,745,347 B2Stepan Company
- Synthesis of mavorixafor and intermediates thereof24 Jul 2025US 2025/0236604 A1X4 Pharmaceuticals, Inc.
- High-efficiency cyclic preparation method for columnar taurine28 Dec 2023US 2023/0416197 A1Qianjiang Yongan Pharmaceutical Co Ltd
- Efficient conversion of methane to methanesulfonic acid via trifluoroacetylsulfuric acid3 Aug 2023US 2023/0242477 A1University of Southern California
- Process for the manufacturing of alkanesulfonic acids1 Apr 2021US 2021/0094908 A1BASF SE
- Unsaturated fatty alcohol derivatives from natural oil metathesis5 Nov 2020US 2020/0347245 A1Stepan Company
Most cited
By later US patents
- Sulfonation of fatty acid esters7US 5,587,500 AThe Chemithon Corporation · 1996
- Sulfonating apparatus5US 4,113,438 AThe Chemithon Corporation · 1978
- Process for producing alkanesulfonic acids5US 4,643,813 ANippon Mining Co., Ltd. · 1987
- Method for the preparation of aliphatic and alicyclic sulphonic acids by catalytic sulphoxidation of hydro-carbons3US 3,956,371 AAminkemi AB · 1976
- Process for preparing sulfonated paraffins with a larger content of polysulfonated species3US 5,364,960 AEnichem Augusta Industriale S.r.l. · 1994