C07C 55/06
Oxalic acid
C07C55/06 (Oxalic acid) appears on 126 US grants and 176 published applications in this corpus.
Search patents in C07C- Granted patents
- 126
- Published applications
- 176
- Assignees
- 143
- Inventors
- 674
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 2 | 7 |
| 2012 | 0 | 8 |
| 2013 | 2 | 9 |
| 2014 | 8 | 3 |
| 2015 | 11 | 11 |
| 2016 | 3 | 5 |
| 2017 | 8 | 8 |
| 2018 | 8 | 13 |
| 2019 | 7 | 8 |
| 2020 | 5 | 6 |
| 2021 | 4 | 10 |
| 2022 | 10 | 17 |
| 2023 | 4 | 14 |
| 2024 | 7 | 17 |
| 2025 | 7 | 24 |
| 2026 | 8 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Psilocybin analogs, salts, compositions, and methods of use15 Sep 2026US 12,735,386 B2Cybin IRL Limited
- Gas generant compositions comprising melamine oxalate for use in automotive restraint devices9 Jun 2026US 12,649,701 B2Autoliv ASP, Inc.
- Salt of arylaminoquinazoline-containing compound, and preparation method therefor and use thereof26 May 2026US 12,637,434 B2Cspc Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd.
- Methods of synthesizing 4-valyloxybutyric acid28 Apr 2026US 12,612,357 B2Xwpharma Ltd.
- Salts and crystal forms of omecamtiv mecarbil28 Apr 2026US 12,612,366 B2Amgen Inc.
- Salt and crystal form of anti-tumor heterocyclic compound8 Oct 2026US 2026/0308143 A1Cspc Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd.
- Solid form of pyrrolidone derivative as glucokinase activator24 Sep 2026US 2026/0285835 A1Hua Medicine (Shanghai) Ltd.
- Psilocybin analogs, salts, compositions, and methods of use27 Aug 2026US 2026/0250246 A1Cybin IRL Limited
- Crystal forms of amino lipids30 Jul 2026US 2026/0217644 A1ModernaTX, Inc.
- Salts and crystalline forms of an ap2 associated kinase 1 inhibitor30 Jul 2026US 2026/0217724 A1
Most cited
By later US patents
- Organo-platinum complex38US 4,359,425 AShionogi & Co., Ltd. · 1982
- Method for production of ultra-fine gold particle-immobilized oxides30US 5,051,394 AAgency of Industrial Science and Technology · 1991
- Method for extracting tobacco alkaloids27US 5,119,835 AB.A.T. Cigarettenfabriken GmbH · 1992
- Polymorphic compounds and uses thereof20US 10,414,732 B2Aldeyra Therapeutics, Inc. · 2019
- Salts and crystal forms of omecamtiv mecarbil16US 11,465,969 B2Amgen Inc. · 2022