C07C 51/34
Preparation of carboxylic acids or their salts, halides or anhydrides: by oxidation
Official title: by oxidation with ozone; by hydrolysis of ozonides
C07C51/34 (Preparation of carboxylic acids or their salts, halides or anhydrides: by oxidation) appears on 80 US grants and 50 published applications in this corpus.
Search patents in C07C- Granted patents
- 80
- Published applications
- 50
- Assignees
- 62
- Inventors
- 178
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 3 |
| 2013 | 1 | 3 |
| 2014 | 6 | 3 |
| 2015 | 3 | 6 |
| 2016 | 3 | 4 |
| 2017 | 4 | 5 |
| 2018 | 2 | 0 |
| 2019 | 3 | 3 |
| 2020 | 3 | 2 |
| 2021 | 1 | 3 |
| 2022 | 0 | 1 |
| 2023 | 3 | 4 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for the oxidation of fatty acids6 May 2025US 12,291,692 B2Council of Scientific and Industrial Research
- High yield jet fuel and chemicals from ozonolysis of triglycerides19 Dec 2023US 11,845,903 B2ExxonMobil Technology and Engineering Company
- Methods for disproportionation quenching of ozonides14 Nov 2023US 11,814,350 B2P2 Science, Inc.
- Long alpha-omega di-functional linear ethers25 Apr 2023US 11,634,376 B2Universiteit Antwerpen
- Film ozonolysis in a tubular or multitubular reactor2 Mar 2021US 10,934,239 B2P2 Science, Inc.
- Methods for production of butyric acid1 Oct 2026US 2026/0297011 A1
- New method for the ozonolytic synthesis of high melting dicarboxylic acids and oxo-acids9 Jul 2026US 2026/0193160 A1
- The oxidation of carbon-hydrogen bonds of polymers using ozone12 Sep 2024US 2024/0301098 A1
- Method for synthesizing labeled pyruvic acid11 Jan 2024US 2024/0010595 A1Shenzhen Zhonghe Headway Bio-Sci & Tech Co., Ltd.
- New methods for disproportionation quenching of ozonides28 Dec 2023US 2023/0416185 A1
Most cited
By later US patents
- Soaps and ester-soaps of .alpha.-olefin derived high molecular weight acids24US 4,029,682 AEmery Industries, Inc. · 1977
- Process for making polycarboxylic acids17US 5,962,285 AHenkel Corporation · 1999
- High molecular weight monocarboxylic acids and ozonization process for their preparation14US 4,038,297 AEmery Industries, Inc. · 1977
- Synthesis of alpha,omega-dicarboxylic acids and esters thereof from unsaturated fatty acid derivatives13US 8,703,993 B2Evonik Degussa GmbH · 2014
- Reacting olefins with ozone in a carboxylic acid medium11US 4,287,130 AChemische Werke Huls Aktiengesellschaft · 1981