C07C 19/12
Having two carbon atoms
Official title: having two carbon atoms
C07C19/12 (Having two carbon atoms) appears on 75 US grants and 42 published applications in this corpus.
Search patents in C07C- Granted patents
- 75
- Published applications
- 42
- Assignees
- 29
- Inventors
- 118
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 3 |
| 2010 | 0 | 1 |
| 2011 | 3 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 3 |
| 2018 | 2 | 0 |
| 2019 | 2 | 5 |
| 2020 | 5 | 3 |
| 2021 | 2 | 5 |
| 2022 | 2 | 2 |
| 2023 | 1 | 3 |
| 2024 | 1 | 5 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Azeotropic or azeotrope-like composition containing trifluoroethylene12 May 2026US 12,623,984 B2Daikin Industries, Ltd.
- Azeotropic or azeotropic-like composition comprising 2-chloro-1,1-difluoroethane4 Feb 2025US 12,215,270 B2Daikin Industries, 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-tetrafluoropropene17 Sep 2024US 12,091,607 B2The Chemours Company Fc, LLC
- 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-tetrafluoropropen23 May 2023US 11,655,406 B2The Chemours Company Fc, LLC
- 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-tetrafluoropropene29 Nov 2022US 11,512,239 B2The Chemours Company Fc, LLC
- 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
- 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-tetrafluoropropene5 Dec 2024US 2024/0400874 A1The Chemours Company Fc, LLC
- Azeotrope and azeotrope-like compositions of 1,1,2-trifluoroethane (hfc-143) and 1-chloro-1,1-difluoroethane (hcfc-142b) and applications thereof14 Nov 2024US 2024/0376030 A1Honeywell International Inc.
- Azeotrope and azeotrope-like compositions of 1,1,2-trifluoroethane (hfc-143) and 1-chloro-1,1,2-trifluoroethane (hcfc-133b) and applications thereof14 Nov 2024US 2024/0376031 A1Honeywell International Inc.
- Azeotrope and azeotrope-like compositions of 1-chloro-1,2-difluoroethane (hcfc-142a) and 1,2-dichloro-1,1,2-trifluoroethane (hcfc-123a) and applications thereof14 Nov 2024US 2024/0376361 A1Honeywell International Inc.
Most cited
By later US patents
- Process for separating HCl and halocarbons25US 5,421,964 AE. I. Du Pont de Nemours and Company · 1995
- Separating and removing impurities from tetrafluoroethanes by using extractive distillation22US 5,470,442 AE. I. Du Pont de Nemours and Company · 1995
- Process for manufacture of high purity 1,1-dichlorotetrafluoroethane21US 5,446,216 AE. I. Du Pont de Nemours and Company · 1995
- Continuous process for the gaseous-phase preparation of trichlorotrifluoroethane, dichlorotetrafluoroethane and monochloropentafluoroethane in controlled proportions19US 4,605,798 APCUK Products Chimiques Ugine Kuhlmann · 1986
- Stabilized dichlorotrifluoroethane refrigeration compositions15US 5,380,449 AAlliedSignal Inc. · 1995