C07C 303/20
By addition of sulfurous acid or salts thereof to compounds having carbon-to-carbon
Official title: by addition of sulfurous acid or salts thereof to compounds having carbon-to-carbon multiple bonds
C07C303/20 (By addition of sulfurous acid or salts thereof to compounds having carbon-to-carbon) appears on 29 US grants and 23 published applications in this corpus.
Search patents in C07C- Granted patents
- 29
- Published applications
- 23
- Assignees
- 26
- Inventors
- 79
- Latest grant
- 3 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 0 | 2 |
| 2015 | 3 | 2 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 1 |
| 2020 | 4 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Haloalkane sulfonic acids, compositions thereof, and related methods3 Dec 2024US 12,157,719 B2University of Kansas
- Liquid detergent composition for textile products21 Sep 2021US 11,124,743 B2Kao Corporation
- Process for the preparation of lightly-branched hydrophobes and the corresponding surfactants and applications thereof17 Nov 2020US 10,836,697 B2Dow Global Technologies LLC
- Method for producing 2-acrylamido-2-methylpropane sulphonic acid2 Jun 2020US 10,669,231 B2S.P.C.M. SA
- Method for producing the 2-acrylamido-2-methylpropane sulfonic acid monomer and polymer comprising said monomer26 May 2020US 10,662,149 B2S.P.C.M. SA
- Haloalkane sulfonic acids, compositions thereof, and related methods6 Feb 2025US 2025/0042845 A1University of Kansas
- Compound and Method for Preparing Same31 Oct 2024US 2024/0360097 A1LG Chem.Ltd.
- Capped alkoxylated alcohols22 Feb 2024US 2024/0059973 A1Arkema France
- Haloalkane sulfonic acids, compositions thereof, and related methods12 Oct 2023US 2023/0322663 A1University of Kansas
- Liquid detergent composition for textile products1 Oct 2020US 2020/0308512 A1Kao Corporation
Most cited
By later US patents
- Photoacid generators and photoresists comprising same34US 6,849,374 B2Shipley Company, L.L.C. · 2005
- Air initiation for detergent range pendant or internal olefin sulfitation27US 4,087,457 AContinental Oil Company · 1978
- Sulfonation in continuous-flow microreactors14US 9,227,929 B2Corning Incorporated · 2016
- Process for the preparation of lightly-branched hydrophobes and the corresponding surfactants and applications thereof7US 10,196,336 B2Dow Global Technologies LLC · 2019
- Process for preparing sulfosuccinates7US 4,039,562 AREWO Chemische Werke GmbH · 1977