C07C 303/08
By reaction with halogenosulfonic acids
Official title: by reaction with halogenosulfonic acids
C07C303/08 (By reaction with halogenosulfonic acids) appears on 34 US grants and 27 published applications in this corpus.
Search patents in C07C- Granted patents
- 34
- Published applications
- 27
- Assignees
- 31
- Inventors
- 136
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 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 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 1 | 1 |
| 2007 | 2 | 3 |
| 2008 | 0 | 1 |
| 2009 | 2 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 2 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Amphoteric compounds6 Jan 2026US 12,516,019 B2Eastman Chemical Company
- Amphoteric compounds16 Aug 2022US 11,414,380 B2Eastman Chemical Company
- Stable positive side material for all-organic flow battery8 Feb 2022US 11,245,111 B2University of Southern California
- Process for the preparation of gadolinium complex of (4S)-4-(4-ethoxybenzyl)-3,6,9-tris(carboxylatomethyl)-3,6,9-triazaundecanedioic acid disodium (Gadoxetate disodium)19 Oct 2021US 11,149,041 B2Biophore India Pharmaceuticals PVT. Ltd.
- EMM-28, a novel synthetic crystalline material, its preparation and use24 Mar 2020US 10,597,300 B2ExxonMobil Research and Engineering Company
- Method for producing organic sulfonic acid compound17 Apr 2025US 2025/0122151 A1Takemoto Oil & Fat Co., Ltd.
- Production process for 3,5-di-tert-utylbenzenesulfonic acid30 Jan 2025US 2025/0034086 A1The Chemours Company Fc, LLC
- Renewable Bio-advantaged plasticizer generated by reductive coupling of lignin-derived aromatics18 Apr 2024US 2024/0124381 A1Alliance for Sustainable Energy, LLC
- Amphoteric compounds10 Nov 2022US 2022/0356151 A1Eastman Chemical Company
- Process of preparing 1,1'-disulfandiylbis(4-fluoro-2-methyl-5-nitrobenzol)3 Nov 2022US 2022/0348538 A1Bayer Aktiengesellschaft
Most cited
By later US patents
- Cleaning products comprising improved alkylarylsulfonate surfactants prepared via vinylidene olefins and processes for preparation thereof42US 6,566,319 B1The Procter & Gamble Company · 2003
- Processes for making alkylbenzenesulfonate surfactants and products thereof34US 6,602,840 B1The Procter & Gamble Company · 2003
- Process for the preparation of aromatic sulfonyl chlorides7US 5,136,043 AHoechst Aktiengesellschaft · 1992
- Branched surfactant manufacture6US 6,433,207 B1The Procter & Gamble Company · 2002
- Process for preparation of aromatic sulfone compounds5US 4,950,793 AAgency of Industrial Science and Technology · 1990