C07C 67/475
Preparation of carboxylic acid esters: by splitting of carbon-to-carbon bonds and redistribution
Official title: by splitting of carbon-to-carbon bonds and redistribution, e.g. disproportionation or migration of [IMAGE cpc-sch-C07C-0963.gif] groups between different molecules
C07C67/475 (Preparation of carboxylic acid esters: by splitting of carbon-to-carbon bonds and redistribution) appears on 135 US grants and 142 published applications in this corpus.
Search patents in C07C- Granted patents
- 135
- Published applications
- 142
- Assignees
- 87
- Inventors
- 299
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 4 |
| 2004 | 3 | 3 |
| 2005 | 2 | 4 |
| 2006 | 0 | 1 |
| 2007 | 2 | 4 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 2 | 4 |
| 2011 | 3 | 7 |
| 2012 | 2 | 0 |
| 2013 | 4 | 8 |
| 2014 | 3 | 14 |
| 2015 | 16 | 18 |
| 2016 | 13 | 14 |
| 2017 | 12 | 12 |
| 2018 | 8 | 4 |
| 2019 | 8 | 10 |
| 2020 | 6 | 4 |
| 2021 | 6 | 3 |
| 2022 | 2 | 6 |
| 2023 | 3 | 3 |
| 2024 | 4 | 10 |
| 2025 | 0 | 0 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing (meth)acrylic monomer6 Oct 2026US 12,753,142 B2Microwave Chemical Co., Ltd.
- Cannabinoid derivatives and precursors, and asymmetric synthesis for same5 May 2026US 12,617,749 B2Kare Chemical Technologies Inc.
- Diester-based material production unit and diester-based material production system including the same22 Oct 2024US 12,122,747 B2LG Chem.Ltd.
- Compounds and the use thereof in metathesis reactions20 Aug 2024US 12,065,450 B2Verbio SE
- Ruthenium complex compound, ligand for producing same, and use thereof23 Apr 2024US 11,964,991 B2Gwangju Institute of Science and Technology
- Preparation of alpha-necrodyl isobutyrate from dienes4 Jun 2026US 2026/0152461 A1Suterra, LLC
- Ruthenium catalysts and methods thereof8 Jan 2026US 2026/0008037 A1The Regents of the University of California
- Process for preparing perfuming intermediates7 Nov 2024US 2024/0368068 A1Firmenich SA
- Organic metal complex catalyst for olefin metathesis reaction31 Oct 2024US 2024/0359169 A1N. E. Chemcat Corporation
- Method and Reactor System For Depolymerizing A Polymer Using A Reusable Catalyst10 Oct 2024US 2024/0336761 A1Ioniqa Technologies B.V.
Most cited
By later US patents
- Olefin metathesis coupling using ruthenium and osmium carbene complexes113US 5,750,815 ACalifornia Institute of Technology · 1998
- Polymer depolymerization using ruthenium and osmium carbene complexes98US 5,728,917 ACalifornia Institute of Technology · 1998
- High activity ruthenium and osmium metal carbene complexes for olefin metathesis reactions95US 5,969,170 ACalifornia Institute of Technology · 1999
- Diene cyclization using ruthenium and osmium carbene complexes84US 5,922,863 ACalifornia Institute of Technology · 1999
- Metathesis syntheses of pheromones or their components65US 6,696,597 B2TillieChem, Inc. · 2004