C07C 303/36
Preparation of esters or amides of sulfuric acids: of amides of sulfonic
Official title: of amides of sulfonic acids
C07C303/36 (Preparation of esters or amides of sulfuric acids: of amides of sulfonic) appears on 357 US grants and 387 published applications in this corpus.
Search patents in C07C- Granted patents
- 357
- Published applications
- 387
- Assignees
- 284
- Inventors
- 1,181
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 7 |
| 2002 | 13 | 8 |
| 2003 | 9 | 23 |
| 2004 | 12 | 14 |
| 2005 | 11 | 25 |
| 2006 | 11 | 10 |
| 2007 | 11 | 15 |
| 2008 | 11 | 16 |
| 2009 | 13 | 18 |
| 2010 | 8 | 17 |
| 2011 | 8 | 12 |
| 2012 | 12 | 11 |
| 2013 | 10 | 19 |
| 2014 | 13 | 14 |
| 2015 | 12 | 18 |
| 2016 | 18 | 20 |
| 2017 | 19 | 25 |
| 2018 | 19 | 21 |
| 2019 | 23 | 16 |
| 2020 | 11 | 11 |
| 2021 | 3 | 17 |
| 2022 | 13 | 10 |
| 2023 | 5 | 7 |
| 2024 | 4 | 11 |
| 2025 | 3 | 10 |
| 2026 | 1 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tautomeric ligand enables biomimetic C—H hydroxylation with molecular oxygen22 Sep 2026US 12,741,937 B2The Scripps Research Institute
- Substituted hydroxystilbene compounds and derivatives synthesis and uses thereof4 Nov 2025US 12,459,883 B2Kynan Duke IP, LLC
- Synthesis of sulfonamide intermediates14 Oct 2025US 12,441,681 B2Amgen Inc.
- Method for synthesis of diazabicyclo[6.2.0]decane related compounds23 Sep 2025US 12,421,246 B2Eisai R&D Management Co., Ltd.
- Compound used as SIRT6 small-molecule allosteric activator and pharmaceutical composition thereof24 Sep 2024US 12,098,119 B2Nutshell BioTech (Shanghai) Co., Ltd.
- Process for the preparation of sulfamoylbenzoic acid derivatives1 Oct 2026US 2026/0297022 A1Iama Therapeutics S.R.L.
- Process for the preparation of sulfamide derivatives17 Sep 2026US 2026/0274789 A1Adama Agan Ltd.
- Onium cation with ether linkages for zinc batteries20 Aug 2026US 2026/0245979 A1U.S. Government as represented by the Secretary of the Army
- Isotopologues of aminoheteroaryl kinase inhibitors and uses thereof13 Aug 2026US 2026/0234111 A1Allorion Therapeutics Inc
- Phosphine ligands and their use in coupling reactions13 Aug 2026US 2026/0234175 A1BASF SE
Most cited
By later US patents
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds78US 6,759,554 B2Massachusetts Institute of Technology · 2004
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds72US 6,867,298 B2Massachusetts Institute of Technology · 2005
- Perfluoroalkylsulfonates, sulfonimides, and sulfonyl methides, and electrolytes containing them69US 5,514,493 AMinnesota Mining and Manufacturing Company · 1996
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds67US 6,888,032 B2Massachusetts Institute of Technology · 2005
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds63US 7,323,608 B2Massachusetts Institute of Technology · 2008