C07C 69/36
Oxalic acid esters
C07C69/36 (Oxalic acid esters) appears on 58 US grants and 36 published applications in this corpus.
Search patents in C07C- Granted patents
- 58
- Published applications
- 36
- Assignees
- 34
- Inventors
- 158
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 7 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 0 |
| 2004 | 1 | 4 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 3 |
| 2015 | 1 | 2 |
| 2016 | 4 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 6 |
| 2021 | 3 | 2 |
| 2022 | 2 | 4 |
| 2023 | 4 | 0 |
| 2024 | 2 | 2 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymeric biomaterials derived from phenolic monomers and their medical uses7 Jul 2026US 12,674,024 B2Rutgers, The State University of New Jersey
- Carbon monoxide prodrugs for the treatment of medical disorders27 Aug 2024US 12,071,415 B2Georgia State University Research Foundation, Inc.
- Polymeric biomaterials derived from phenolic monomers and their medical uses9 Jul 2024US 12,030,983 B2Rutgers, The State University of New Jersey
- Preparation of secondary amines with electrophilic N-linchpin reagents26 Sep 2023US 11,767,291 B2William Marsh Rice University
- Silicon-based energy storage devices with electrolyte additive compounds29 Aug 2023US 11,742,519 B2Enevate Corporation
- Radiation-sensitive composition, method for forming resist pattern, and compound30 Oct 2025US 2025/0334880 A1Jsr Corporation
- Musky odorant21 Aug 2025US 2025/0263629 A1Firmenich SA
- Carbon monoxide prodrugs for the treatment of medical disorders28 Nov 2024US 2024/0391886 A1Georgia State University Research Foundation, Inc.
- Polymeric biomaterials derived from phenolic monomers and their medical uses12 Sep 2024US 2024/0301134 A1Rutgers, The State University of New Jersey
- Calixarene compound, curable composition and cured product6 Oct 2022US 2022/0315527 A1DIC Corporation
Most cited
By later US patents
- Process for preparing a diester of oxalic acid68US 4,487,958 AUnion Carbide Corporation · 1984
- Bis(alkyleneoxybenzophenone) ultraviolet light absorbers20US 6,537,670 B1Cytec Technology Corp. · 2003
- Process for the preparation of dialkyl oxalates18US 4,138,587 AUbe Industries, Ltd. · 1979
- Process for the preparation of oxalate esters17US 4,076,949 AAtlantic Richfield Company · 1978
- Process for the oxidative carbonylation of alcohols and method for the reoxidation of reduced copper salts produced by the oxidation carbonylation16US 4,005,129 AAtlantic Richfield Company · 1977