C07C 2601/16
The ring being unsaturated
Official title: the ring being unsaturated
C07C2601/16 (The ring being unsaturated) appears on 2,736 US grants and 2,292 published applications in this corpus.
Search patents in C07C- Granted patents
- 2,736
- Published applications
- 2,292
- Assignees
- 1,380
- Inventors
- 7,269
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 44 | 0 |
| 1977 | 43 | 0 |
| 1978 | 64 | 0 |
| 1979 | 39 | 0 |
| 1980 | 64 | 0 |
| 1981 | 52 | 0 |
| 1982 | 33 | 0 |
| 1983 | 17 | 0 |
| 1984 | 31 | 0 |
| 1985 | 31 | 0 |
| 1986 | 26 | 0 |
| 1987 | 17 | 0 |
| 1988 | 22 | 0 |
| 1989 | 37 | 0 |
| 1990 | 42 | 0 |
| 1991 | 35 | 0 |
| 1992 | 46 | 0 |
| 1993 | 50 | 0 |
| 1994 | 36 | 0 |
| 1995 | 51 | 0 |
| 1996 | 67 | 0 |
| 1997 | 53 | 0 |
| 1998 | 60 | 0 |
| 1999 | 46 | 0 |
| 2000 | 47 | 0 |
| 2001 | 59 | 13 |
| 2002 | 60 | 51 |
| 2003 | 44 | 58 |
| 2004 | 46 | 82 |
| 2005 | 29 | 40 |
| 2006 | 36 | 54 |
| 2007 | 34 | 43 |
| 2008 | 31 | 50 |
| 2009 | 35 | 61 |
| 2010 | 45 | 82 |
| 2011 | 52 | 78 |
| 2012 | 48 | 63 |
| 2013 | 58 | 67 |
| 2014 | 60 | 100 |
| 2015 | 94 | 108 |
| 2016 | 97 | 133 |
| 2017 | 117 | 125 |
| 2018 | 93 | 113 |
| 2019 | 105 | 121 |
| 2020 | 109 | 111 |
| 2021 | 89 | 155 |
| 2022 | 85 | 151 |
| 2023 | 66 | 110 |
| 2024 | 83 | 129 |
| 2025 | 64 | 124 |
| 2026 | 44 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Synthesis of para-alkylated syringyl (meth)acrylate derivatives and photopolymerizable compositions for additive manufacturing in dental applications15 Sep 2026US 12,735,380 B2Align Technology, Inc.
- Compound, and composition for forming hole transporting layer for perovskite solar cells15 Sep 2026US 12,735,395 B2Tokyo Chemical Industry Co., Ltd.
- Small molecules promoting sympathetic nerve regeneration8 Sep 2026US 12,729,177 B2Oregon Health & Science University
- Nitrogen-branched non-linear pegylated lipid containing a tertiary amine and application thereof18 Aug 2026US 12,708,675 B2Xiamen Sinopeg Biotech Co., Ltd.
- Industrial extraction method of cannabidiol11 Aug 2026US 12,703,672 B2Chenguang Biotech Group Co., Ltd.
- Photocatalytic c-c coupling reactions of terminal alkynes using cupric oxide-based mie resonator photocatalysts8 Oct 2026US 2026/0307053 A1
- Compound, composition, and package structure8 Oct 2026US 2026/0308096 A1Industrial Technology Research Institute
- Organic Photoredox Catalysts, Compositions, and Conversion Processes24 Sep 2026US 2026/0284647 A1Colorado State University Research Foundation
- Liquid phase process for preparing isophorone24 Sep 2026US 2026/0285795 A1Evonik Operations GmbH
- Process for producing renewable mono-methyl alkylbenzene products17 Sep 2026US 2026/0274769 A1Uop LLC
Most cited
By later US patents
- 9-cis retinoic acid esters and amides and uses thereof352US 5,837,728 AMolecular Design International, Inc. · 1998
- Ethynylphenyl-containing retinoic acid derivatives151US 4,739,098 AAllergan, Inc. · 1988
- Process for preparing alcohols150US 4,317,918 ASumitomo Chemical Company, Limited · 1982
- Ligands for metals and improved metal-catalyzed processes based thereon143US 6,307,087 B1Massachusetts Institute of Technology · 2001
- Method for immobilizing oligonucleotides employing the cycloaddition bioconjugation method143US 7,427,678 B2Sigma-Aldrich Co. · 2008