C07C 45/676
By elimination of carboxyl groups
Official title: {by elimination of carboxyl groups}
C07C45/676 (By elimination of carboxyl groups) appears on 166 US grants and 58 published applications in this corpus.
Search patents in C07C- Granted patents
- 166
- Published applications
- 58
- Assignees
- 98
- Inventors
- 389
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 12 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 9 | 0 |
| 2000 | 1 | 0 |
| 2001 | 8 | 1 |
| 2002 | 1 | 3 |
| 2003 | 3 | 3 |
| 2004 | 2 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 5 |
| 2007 | 3 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 5 |
| 2010 | 0 | 7 |
| 2011 | 1 | 1 |
| 2012 | 3 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 3 |
| 2015 | 2 | 4 |
| 2016 | 3 | 2 |
| 2017 | 2 | 0 |
| 2018 | 0 | 3 |
| 2019 | 2 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 3 |
| 2024 | 1 | 6 |
| 2025 | 2 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Processes and intermediates for the preparations of benzoprostacyclin analogues and benzoprostacyclin analogues prepared therefrom16 Dec 2025US 12,497,375 B2Chirogate International Inc.
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- Process27 Aug 2026US 2026/0250230 A1Givaudan SA
- Process for preparing gamma,delta-unsaturated aldehydes derivatives15 May 2025US 2025/0154090 A1Firmenich SA
- Process for preparing a cyclic diene30 Jan 2025US 2025/0034074 A1
- Phenanthrene-based compound having high refractive index and preparation method therefor26 Sep 2024US 2024/0317664 A1Research & Business Foundation Sungkyunkwan University
- KC2-Type Lipids12 Sep 2024US 2024/0300914 A1NanoVation Therapeutics Inc.
Most cited
By later US patents
- Preparation of alpha, beta-unsaturated ketones43US 4,885,395 ABASF Aktiengsellschaft · 1989
- Fused bicyclic or tricyclic amino acids42US 6,596,900 B2Pfizer Inc. · 2003
- Azole derivatives and agricultural and horticultural chemical composition containing the same33US 4,938,792 AKureha Kagaku Kogyo Kabushiki Kaisha · 1990
- Synthesis of coenzyme Q10, ubiquinone25US 6,686,485 B22004
- Polyene compounds24US 3,931,257 AHoffmann-La Roche Inc. · 1976