C07C 67/38
By addition to an unsaturated carbon-to-carbon bond
Official title: by addition to an unsaturated carbon-to-carbon bond
C07C67/38 (By addition to an unsaturated carbon-to-carbon bond) appears on 283 US grants and 149 published applications in this corpus.
Search patents in C07C- Granted patents
- 283
- Published applications
- 149
- Assignees
- 110
- Inventors
- 509
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 11 | 0 |
| 1982 | 8 | 0 |
| 1983 | 6 | 0 |
| 1984 | 9 | 0 |
| 1985 | 11 | 0 |
| 1986 | 10 | 0 |
| 1987 | 12 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 12 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 5 |
| 2002 | 5 | 4 |
| 2003 | 1 | 2 |
| 2004 | 4 | 7 |
| 2005 | 2 | 2 |
| 2006 | 8 | 7 |
| 2007 | 2 | 4 |
| 2008 | 3 | 2 |
| 2009 | 4 | 8 |
| 2010 | 3 | 2 |
| 2011 | 1 | 5 |
| 2012 | 1 | 6 |
| 2013 | 5 | 6 |
| 2014 | 4 | 4 |
| 2015 | 6 | 15 |
| 2016 | 15 | 4 |
| 2017 | 9 | 10 |
| 2018 | 5 | 8 |
| 2019 | 5 | 4 |
| 2020 | 6 | 3 |
| 2021 | 2 | 8 |
| 2022 | 5 | 9 |
| 2023 | 5 | 4 |
| 2024 | 4 | 6 |
| 2025 | 4 | 8 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Propionic acid process7 Apr 2026US 12,595,223 B2Eastman Chemical Company
- Method for the preparation of omega-amino-carboxylic acids and derivatives thereof2 Dec 2025US 12,486,468 B2Versalis S.P.A.
- Method for preparing organic carboxylic ester by using combined catalyst of aryl bidentate phosphine ligand26 Aug 2025US 12,398,089 B2Lanzhou Institute of Chemical Physics, CAS
- Method of manufacturing sugar cane polyvinyl alcohol29 Jul 2025US 12,371,716 B2
- Platinum complexes having ferrocene ligands for the catalysis of the alkoxycarbonylation of ethylenically unsaturated compounds14 Jan 2025US 12,195,483 B2Evonik Oxeno GmbH
- Catalyst system and method for carbonylation reaction23 Jul 2026US 2026/0208174 A1Shandong Nhu Fine Chemical Science and Technology Company Ltd.
- Methoxypyridyl ligands and use thereof in alkoxycarbonylation18 Jun 2026US 2026/0166539 A1Evonik Oxeno GmbH
- Method for producing compound having dicarboxylic acid derivative structure18 Jun 2026US 2026/0167587 A1Kyushu University, National University Corporation
- Phosphine ligands and use thereof in carbonylation of acetylene/ethylene to synthesize acrylate/propionate18 Jun 2026US 2026/0167598 A1Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
- Picolyl ligands and their use in alkoxycarbonylation18 Jun 2026US 2026/0167653 A1Evonik Oxeno GmbH
Most cited
By later US patents
- Derivatives of polyamines with one primary amine and secondary of tertiary amines53US 5,643,859 AExxon Chemical Patents Inc. · 1997
- Efficient and selective conversion of carbon dioxide to methanol, dimethyl ether and derived products47US 7,605,293 B2University of Southern California · 2009
- Preparation of carboxylic acid esters with BF.sub.3 -alcohol complex catalyst32US 4,311,851 AChem Systems Inc. · 1982
- Continuous process for production of functionalized olefins32US 5,650,536 AExxon Chemical Patents Inc. · 1997
- Palladium sulfonate catalyst systems for carbonylation of olefins31US 4,414,409 AE. I. Du Pont de Nemours and Company · 1983