C07C 53/38
Acyl halides
C07C53/38 (Acyl halides) appears on 101 US grants and 30 published applications in this corpus.
Search patents in C07C- Granted patents
- 101
- Published applications
- 30
- Assignees
- 55
- Inventors
- 162
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 8 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 2 | 3 |
| 2015 | 2 | 3 |
| 2016 | 3 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 3 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 3 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods for removal of sulfur dioxide (SO2) from trifluoroacetyl chloride (TFAC)14 Jul 2026US 12,679,800 B2Solstice Advanced Materials US, Inc.
- Processes to produce brivaracetam11 Feb 2025US 12,221,413 B2Suzhou Pengxu Pharmatech Co., Ltd.
- Methods for removal of sulfur dioxide (SO2) from trifluoroacetyl chloride (TFAC)21 May 2024US 11,987,553 B2Honeywell International Inc.
- Processes to produce brivaracetam13 Jun 2023US 11,673,862 B2Suzhou Pengxu Pharmatech Co., Ltd.
- Perfluoro diacyl peroxide as polymerization initiator and polymer preparation method7 Feb 2023US 11,572,343 B2Daikin Industries, Ltd.
- Methods for removal of sulfur dioxide (so2) from trifluoroacetyl chloride (tfac)3 Sep 2026US 2026/0257984 A1Solstice Advanced Materials US, Inc.
- Methods for removal of sulfur dioxide (so2) from trifluoroacetyl chloride (tfac)12 Sep 2024US 2024/0300884 A1Honeywell International Inc.
- Processes to produce brivaracetam20 Jun 2024US 2024/0199541 A9Suzhou Pengxu Pharmatech Co., Ltd.
- Methods for removal of sulfur dioxide (so2) from trifluoroacetyl chloride (tfac)17 Mar 2022US 2022/0081386 A1Honeywell International Inc.
- Azeotrope or azeotrope-like compositions of trifluoroiodomethane (cf3i) and trifluoroacetyl chloride (cf3coci)10 Mar 2022US 2022/0073803 A1Honeywell International Inc.-Intellectual Property Services Group
Most cited
By later US patents
- Disubstituted ethanes61US 4,439,015 AHoffmann-La Roche Inc. · 1984
- Semifluorinated side chain-containing polymers47US 5,907,017 ACornell Research Foundation, Inc. · 1999
- Nematic compounds37US 4,637,897 AMerck Patent GmbH · 1987
- Liquid crystal materials36US 4,257,911 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1981
- Alpha-branched fluoroalkylcarbonyl fluorides and their derivatives33US 6,013,795 A3M Innovative Properties Company · 2000