C07C 219/20
The carbon skeleton being unsaturated
Official title: the carbon skeleton being unsaturated
C07C219/20 (The carbon skeleton being unsaturated) appears on 82 US grants and 74 published applications in this corpus.
Search patents in C07C- Granted patents
- 82
- Published applications
- 74
- Assignees
- 71
- Inventors
- 244
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 12 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 3 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 2 |
| 2006 | 2 | 2 |
| 2007 | 2 | 4 |
| 2008 | 4 | 2 |
| 2009 | 0 | 6 |
| 2010 | 2 | 3 |
| 2011 | 2 | 4 |
| 2012 | 2 | 3 |
| 2013 | 5 | 6 |
| 2014 | 3 | 3 |
| 2015 | 2 | 2 |
| 2016 | 4 | 3 |
| 2017 | 0 | 3 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 4 |
| 2022 | 2 | 4 |
| 2023 | 1 | 3 |
| 2024 | 0 | 1 |
| 2025 | 6 | 3 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cationic lipid compound, and preparation method therefor and use thereof10 Mar 2026US 12,569,449 B1Rongcan (Shanghai) Biotech Co., Ltd.
- Ionizable lipids for nucleic acid delivery23 Dec 2025US 12,503,432 B2Global Life Sciences Solutions Canada ULC
- Compound [2-(dimethylamino)-2-phenylbutyl]-3,4,5-trimethoxybenzoate 4-methyl-2H-chromen-2-on-7-yl sulphate and use thereof16 Dec 2025US 12,497,376 B2Ltd “Valenta-Intellekt”
- Polymorphic forms of (R)-oxybutynin hydrochloride21 Oct 2025US 12,448,347 B2Apnimed, Inc. (Delaware)
- Nanomaterials7 Oct 2025US 12,435,035 B2Guide Therapeutics, LLC
- Polymorphic forms of (r)-oxybutynin hydrochloride24 Sep 2026US 2026/0285799 A1Apnimed, Inc. (Delaware)
- Surfactant compositions derived from waste streams, and methods30 Jul 2026US 2026/0218053 A1Kemira Oyj
- Ionizable lipids for nucleic acid delivery19 Mar 2026US 2026/0078085 A1Global Life Sciences Solutions Canada ULC
- Polymorphic forms of (r)-oxybutynin hydrochloride22 Jan 2026US 2026/0022091 A1Apnimed, Inc. (Delaware)
- Ionizable lipid containing biodegradable ester bond and lipid nanoparticles comprising same15 Jan 2026US 2026/0014075 A1St Pharm Co., Ltd.
Most cited
By later US patents
- 1-phenyl-3-dimethylaminopropane compounds with a pharmacological effects90US 6,248,737 B1Gruenenthal GmbH · 2001
- 1-alkyl-, 1-alkenyl-, and 1-alkynylaryl-2-amino-1,3-propanediols and related compounds as anti-inflammatory agents51US 5,360,811 AHoechst-Roussel Pharmaceuticals Inc. · 1994
- Substituted heterocyclic compounds method of preparing them and pharmaceutical compositions in which they are present50US 5,780,466 ASanofi · 1998
- Benzene compound and pharmaceutical use thereof40US 5,948,820 AYoshitomi Pharmaceutical Industries, Ltd. · 1999
- Substituted heterocylic compounds, method of preparing them and pharmaceutical compositions in which they are present30US 6,242,637 B1Sanofi-Synthelabo · 2001