C07C 45/54
Of compounds containing doubly bound oxygen atoms
Official title: of compounds containing doubly bound oxygen atoms, e.g. esters
C07C45/54 (Of compounds containing doubly bound oxygen atoms) appears on 382 US grants and 84 published applications in this corpus.
Search patents in C07C- Granted patents
- 382
- Published applications
- 84
- Assignees
- 157
- Inventors
- 731
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 14 | 0 |
| 1980 | 22 | 0 |
| 1981 | 16 | 0 |
| 1982 | 19 | 0 |
| 1983 | 10 | 0 |
| 1984 | 17 | 0 |
| 1985 | 10 | 0 |
| 1986 | 10 | 0 |
| 1987 | 19 | 0 |
| 1988 | 18 | 0 |
| 1989 | 25 | 0 |
| 1990 | 14 | 0 |
| 1991 | 12 | 0 |
| 1992 | 10 | 0 |
| 1993 | 12 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 0 |
| 2002 | 5 | 5 |
| 2003 | 2 | 7 |
| 2004 | 6 | 6 |
| 2005 | 9 | 4 |
| 2006 | 7 | 3 |
| 2007 | 2 | 5 |
| 2008 | 1 | 1 |
| 2009 | 3 | 3 |
| 2010 | 2 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 3 |
| 2015 | 2 | 6 |
| 2016 | 2 | 4 |
| 2017 | 7 | 4 |
| 2018 | 3 | 7 |
| 2019 | 1 | 4 |
| 2020 | 4 | 2 |
| 2021 | 5 | 5 |
| 2022 | 1 | 2 |
| 2023 | 2 | 2 |
| 2024 | 0 | 4 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Photooxidation of 2,4,6-trimethylphenol31 Mar 2026US 12,590,058 B2Dsm IP Assets B.V.
- Process of preparing 3-fluoro-5(((1R,2AR)-3,3,4,4-tetrafluoro-1,2A-dihydroxy-2,2A,3,4-tetrahydro-1H-cyclopenta[cd]inden-7-yl)-oxy)benzonitrile7 Oct 2025US 12,435,034 B2Nikang Therapeutics, Inc.
- Process for preparing tapinarof15 Apr 2025US 12,275,696 B2Dermavant Sciences GmbH
- 5-methylchromone and the preparation method and application thereof14 Jan 2025US 12,195,435 B2Hainan Medical University
- Process of preparing 3-fluoro-5(((1R,2aR)-3,3,4,4-tetrafluoro-1,2a-dihydroxy-2,2a,3,4-tetrahydro-1H-cyclopenta[cd]inden-7-yl)-oxy)benzonitrile25 Apr 2023US 11,634,382 B2Nikang Therapeutics, Inc.
- Process for borane-mediated ester reduction11 Jun 2026US 2026/0159468 A1Provivi, Inc.
- Process for preparing tapinarof28 Aug 2025US 2025/0270158 A1Dermavant Sciences GmbH
- Process for preparing perfuming intermediates7 Nov 2024US 2024/0368068 A1Firmenich SA
- Method for producing 1,3-disubstituted bicyclo[1.1.1]pentane by photoreaction13 Jun 2024US 2024/0190800 A1FUJIFILM Corporation
- Photooxidation of 2,4,6-trimethylphenol22 Feb 2024US 2024/0059650 A1Dsm IP Assets B.V.
Most cited
By later US patents
- Methods for identifying and optimizing materials in microfluidic systems177US 6,737,026 B1Symyx Technologies, Inc. · 2004
- Chemical processing microsystems comprising parallel flow microreactors and methods for using same166US 6,749,814 B1Symyx Technologies, Inc. · 2004
- Process for converting perfluorinated esters to perfluorinated acyl fluorides and/or ketones85US 5,466,877 AMinnesota Mining and Manufacturing Company · 1995
- Method for conversion of biomass to chemicals and fuels81US 6,043,392 AThe Texas A&M University System · 2000
- Liquid phase fluorination77US 5,093,432 AExfluor Research Corporation · 1992