C07B 41/08
Formation or introduction of functional groups containing oxygen: of carboxyl groups or
Official title: of carboxyl groups or salts, halides or anhydrides thereof
C07B41/08 (Formation or introduction of functional groups containing oxygen: of carboxyl groups or) appears on 56 US grants and 61 published applications in this corpus.
Search patents in C07B- Granted patents
- 56
- Published applications
- 61
- Assignees
- 51
- Inventors
- 193
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 3 | 5 |
| 2014 | 2 | 3 |
| 2015 | 5 | 7 |
| 2016 | 3 | 8 |
| 2017 | 6 | 4 |
| 2018 | 3 | 8 |
| 2019 | 5 | 2 |
| 2020 | 7 | 3 |
| 2021 | 3 | 4 |
| 2022 | 1 | 1 |
| 2023 | 2 | 2 |
| 2024 | 0 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing alpha-acyloxycarboxylic acid ester5 Aug 2025US 12,378,181 B2Mitsubishi Gas Chemical Company, Inc.
- Method for producing carbonate derivative8 Jul 2025US 12,351,568 B2Mitsubishi Gas Chemical Company, Inc.
- Acid-catalyzed photocatalyzed oxidation reaction of benzylic C—H bonds of aromatic compound3 Oct 2023US 11,773,045 B2Nanjing Tech University
- Method for the production of 2,4-dihydroxybutyric acid14 Feb 2023US 11,578,029 B2Dfi USA, LLC
- Synthesis of glycoconjugate derivatives of a bile acid2 Aug 2022US 11,401,297 B2Dipharma Francis S.R. L.
- Electrochemical reactor and method for producing oxygen-containing organic material16 Apr 2026US 2026/0103808 A1Sekisui Chemical Co., Ltd.
- Catalytic carboxycarbonylation of alkenes to form anhydrides4 Dec 2025US 2025/0368598 A1Eastman Chemical Company
- Preparation method for tetra-substituted allenoic acid compound based on palladium catalytic system20 Jun 2024US 2024/0199521 A1Fudan University
- Acid-catalyzed photocatalyzed oxidation reaction of benzylic c-h bonds of aromatic compound3 Aug 2023US 2023/0242470 A1Nanjing Tech University
- Synthetic methods for making carboxylic acids, esters and lactones29 Jun 2023US 2023/0202996 A1
Most cited
By later US patents
- Catalyst based on oxides of Fe, Co, Bi and Mo23US 5,808,143 ABASF SE · 1998
- Furan-2,5-dicarboxylic acid purge process18US 9,573,120 B2Eastman Chemical Company · 2017
- Furan-2,5-dicarboxylic acid purge process17US 9,504,994 B2Eastman Chemical Company · 2016
- Furan-2,5-dicarboxylic acid purge process16US 9,604,202 B2Eastman Chemical Company · 2017
- Furan-2,5-dicarboxylic acid purge process11US 10,350,584 B2Eastman Chemical Company · 2019