C07C 21/04
Chloro-alkenes
C07C21/04 (Chloro-alkenes) appears on 133 US grants and 114 published applications in this corpus.
Search patents in C07C- Granted patents
- 133
- Published applications
- 114
- Assignees
- 65
- Inventors
- 261
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 4 |
| 2008 | 1 | 6 |
| 2009 | 1 | 7 |
| 2010 | 3 | 4 |
| 2011 | 8 | 8 |
| 2012 | 5 | 2 |
| 2013 | 2 | 3 |
| 2014 | 7 | 11 |
| 2015 | 4 | 4 |
| 2016 | 6 | 6 |
| 2017 | 4 | 10 |
| 2018 | 10 | 10 |
| 2019 | 11 | 7 |
| 2020 | 9 | 6 |
| 2021 | 5 | 10 |
| 2022 | 8 | 5 |
| 2023 | 2 | 3 |
| 2024 | 2 | 3 |
| 2025 | 5 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Regeneration method and application of nitrogen-containing carbon catalyst14 Oct 2025US 12,440,829 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Azeotrope or azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and water26 Aug 2025US 12,398,085 B2Honeywell International Inc.
- Chlor-alkali and carbon monoxide electrolyzer integration1 Apr 2025US 12,264,402 B2Dioxycle
- Azeotropic or azeotropic-like composition comprising 2-chloro-1,1-difluoroethane4 Feb 2025US 12,215,270 B2Daikin Industries, Ltd.
- Chlor-alkali and carbon monoxide electrolyzer integration28 Jan 2025US 12,209,322 B2Dioxycle
- Composition16 Apr 2026US 2026/0103554 A1Kuraray Co., Ltd.
- Compositions comprising 2,3-dichloro-1,1,1-trifluoropropane, 2 chloro-1,1,1-trifluoropropene, 2-chloro-1,1,1,2-tetrafluoropropane or 2,3,3,3-tetrafluoropropene15 Jan 2026US 2026/0015535 A1The Chemours Company Fc, LLC
- Azeotrope or azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (hcfo-1233xf) and water6 Nov 2025US 2025/0340498 A1Honeywell International Inc.
- Chlor-alkali and Carbon Monoxide Electrolyzer Integration26 Dec 2024US 2024/0425995 A1Dioxycle
- Chlor-alkali and Carbon Monoxide Electrolyzer Integration26 Dec 2024US 2024/0425996 A1Dioxycle
Most cited
By later US patents
- Process for producing 1,1,2,3-tetrachloropropene92US 4,650,914 AMonsanto Company · 1987
- Process for producing 1,1,2,3-tetrachloropropene62US 4,535,194 AMonsanto Company · 1985
- Methods of making chlorinated hydrocarbons60US 8,115,038 B2Occidental Chemical Corporation · 2012
- Oxidative halogenation of C1 hydrocarbons to halogenated C1 hydrocarbons and integrated processes related thereto55US 6,452,058 B1Dow Global Technologies LLC · 2002
- Process for the manufacture of vinyl chloride35US 4,737,594 AProduits Chimiques Ugine Kuhlmann · 1988