C07C 21/073
Dichloro-alkenes
C07C21/073 (Dichloro-alkenes) appears on 20 US grants and 19 published applications in this corpus.
Search patents in C07C- Granted patents
- 20
- Published applications
- 19
- Assignees
- 16
- Inventors
- 44
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 2 |
| 2019 | 2 | 0 |
| 2020 | 2 | 2 |
| 2021 | 1 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Azeotropic or azeotropic-like composition comprising 2-chloro-1,1-difluoroethane4 Feb 2025US 12,215,270 B2Daikin Industries, Ltd.
- Dividing wall distillation column and method for refining vinylidene dichloride by using same25 Jul 2023US 11,707,697 B2Hanwha Solutions Corporation
- Dividing wall distillation column and method for refining vinylidene dichloride by using same11 Jan 2022US 11,219,840 B2Hanwha Solutions Corporation
- Method for recycling catalyst in the production of chlorinated alkanes7 Dec 2021US 11,192,840 B2Blue Cube IP LLC
- Composition containing hydrofluoroolefin compound10 Nov 2020US 10,829,426 B2Daikin Industries, Ltd.
- Composition16 Apr 2026US 2026/0103554 A1Kuraray Co., Ltd.
- Dividing wall distillation column and method for refining vinylidene dichloride by using same24 Mar 2022US 2022/0088502 A1Hanwha Solutions Corporation
- Azeotropic composition, azeotrope-like composition, composition, cleaning agent, solvent, and heat transfer medium10 Mar 2022US 2022/0073804 A1AGC Inc.
- Azeotropic or azeotropic-like composition comprising 2-chloro-1,1-difluoroethane4 Nov 2021US 2021/0340084 A1Daikin Industries, Ltd.
- Composition comprising 1-chloro-2,2-difluoroethane and 1,1-dichloroethylene7 Oct 2021US 2021/0309594 A1Arkema France
Most cited
By later US patents
- Hydrochlorofluorocarbon azeotropic or azeotropic-like mixture26US 5,607,912 AAsahi Glass Company, Limited · 1997
- Process for rearranging allylic geminal dihalogen compounds8US 5,072,063 ADowElanco · 1991
- Chlorination of butadiene6US 4,049,729 AE. I. Du Pont de Nemours and Company · 1977
- Removal of monochloroacetylene from chlorinated hydrocarbons5US 4,028,426 APPG Industries, Inc. · 1977
- Catalytic gas phase fluorination of 243db to 1234yf5US 8,207,384 B2Arkema France · 2012