C07C 51/58
Preparation of carboxylic acid halides
C07C51/58 (Preparation of carboxylic acid halides) appears on 614 US grants and 252 published applications in this corpus.
Search patents in C07C- Granted patents
- 614
- Published applications
- 252
- Assignees
- 247
- Inventors
- 1,267
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 14 | 0 |
| 1978 | 42 | 0 |
| 1979 | 19 | 0 |
| 1980 | 24 | 0 |
| 1981 | 34 | 0 |
| 1982 | 32 | 0 |
| 1983 | 23 | 0 |
| 1984 | 15 | 0 |
| 1985 | 17 | 0 |
| 1986 | 10 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 20 | 0 |
| 1990 | 16 | 0 |
| 1991 | 14 | 0 |
| 1992 | 8 | 0 |
| 1993 | 13 | 0 |
| 1994 | 8 | 0 |
| 1995 | 10 | 0 |
| 1996 | 11 | 0 |
| 1997 | 12 | 0 |
| 1998 | 10 | 0 |
| 1999 | 15 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 1 |
| 2002 | 8 | 7 |
| 2003 | 7 | 21 |
| 2004 | 10 | 15 |
| 2005 | 12 | 20 |
| 2006 | 13 | 10 |
| 2007 | 9 | 6 |
| 2008 | 13 | 10 |
| 2009 | 6 | 8 |
| 2010 | 4 | 7 |
| 2011 | 7 | 10 |
| 2012 | 5 | 8 |
| 2013 | 6 | 8 |
| 2014 | 11 | 13 |
| 2015 | 11 | 9 |
| 2016 | 8 | 7 |
| 2017 | 6 | 12 |
| 2018 | 8 | 7 |
| 2019 | 8 | 12 |
| 2020 | 11 | 13 |
| 2021 | 10 | 10 |
| 2022 | 2 | 10 |
| 2023 | 4 | 8 |
| 2024 | 6 | 11 |
| 2025 | 2 | 4 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for the preparation of (9S)-2-bromo-9-(2,3,4-trifluorophenyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[1,5-A]azepine6 Oct 2026US 12,753,175 B2Hoffmann-La Roche Inc.
- Methods for removal of sulfur dioxide (SO2) from trifluoroacetyl chloride (TFAC)14 Jul 2026US 12,679,800 B2Solstice Advanced Materials US, Inc.
- Method of producing carboxylic acid fluoride3 Feb 2026US 12,540,113 B2Kanto Denka Kogyo Co., Ltd.
- Method of purifying carboxylic acid fluoride2 Dec 2025US 12,486,213 B2Kanto Denka Kogyo Co., Ltd.
- Processes for producing trifluoroiodomethane and trifluoroacetyl iodide22 Apr 2025US 12,281,053 B2Honeywell International Inc.
- Continuous deoxyfluorination with sf41 Oct 2026US 2026/0296993 A1Lonza Ltd.
- Methods for removal of sulfur dioxide (so2) from trifluoroacetyl chloride (tfac)3 Sep 2026US 2026/0257984 A1Solstice Advanced Materials US, Inc.
- Synthesis methods and intermediates for the production of remimbrutinib23 Jul 2026US 2026/0209185 A1Novartis AG
- Method for producing carbonyl halide28 May 2026US 2026/0145949 A1Mitsubishi Gas Chemical Company, Inc.
- Recycled content dimethyl terephthalate and related chemical components from waste plastic5 Feb 2026US 2026/0035533 A1Eastman Chemical Company
Most cited
By later US patents
- Polyfluoroallyloxy compounds, their preparation and copolymers therefrom117US 4,275,225 AE. I. Du Pont de Nemours and Company · 1981
- Preparation of fluorocarbonyl compounds115US 4,357,282 AE. I. Du Pont de Nemours and Company · 1982
- Process for converting perfluorinated esters to perfluorinated acyl fluorides and/or ketones85US 5,466,877 AMinnesota Mining and Manufacturing Company · 1995
- Herbicidal 3-isoxazolidinones and hydroxamic acids46US 4,405,357 AFMC Corporation · 1983
- Fluorocarbon ethers having substituted halogen site(s) and process to prepare44US 4,337,211 AThe Dow Chemical Company · 1982