C07C 55/02
Dicarboxylic acids
C07C55/02 (Dicarboxylic acids) appears on 402 US grants and 522 published applications in this corpus.
Search patents in C07C- Granted patents
- 402
- Published applications
- 522
- Assignees
- 394
- Inventors
- 1,721
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 10 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 3 |
| 2005 | 0 | 2 |
| 2006 | 1 | 3 |
| 2007 | 2 | 3 |
| 2008 | 0 | 0 |
| 2009 | 2 | 8 |
| 2010 | 1 | 8 |
| 2011 | 4 | 12 |
| 2012 | 3 | 16 |
| 2013 | 8 | 21 |
| 2014 | 14 | 17 |
| 2015 | 17 | 37 |
| 2016 | 24 | 39 |
| 2017 | 25 | 28 |
| 2018 | 26 | 39 |
| 2019 | 24 | 30 |
| 2020 | 31 | 23 |
| 2021 | 18 | 37 |
| 2022 | 23 | 33 |
| 2023 | 16 | 35 |
| 2024 | 18 | 45 |
| 2025 | 18 | 42 |
| 2026 | 21 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 55/06Oxalic acid126
- C07C 55/10Succinic acid121
- C07C 55/08Malonic acid72
- C07C 55/14Adipic acid69
- C07C 55/12Glutaric acid26
- C07C 55/20Sebacic acid21
- C07C 55/21Dicarboxylic acids containing twelve carbon atoms18
- C07C 55/18Azelaic acid9
All 9 subgroupsShow fewer
Recent patents
- Psilocybin analogs, salts, compositions, and methods of use15 Sep 2026US 12,735,386 B2Cybin IRL Limited
- Methods for the preparation of sphingosine 1-phosphate receptor modulators and solid forme thereof11 Aug 2026US 12,703,681 B2Cipla 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.
- Pharmaceutically acceptable salts of sepiapterin26 May 2026US 12,637,465 B2PTC Therapeutics MP, Inc.
- Method of synthesis8 Oct 2026US 2026/0308107 A1Mitocholine Ltd.
- 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.
- Ulodesine salt24 Sep 2026US 2026/0285864 A1Laevoroc Immunology AG
- Salts and solid forms of elenestinib17 Sep 2026US 2026/0274850 A1Assia Chemical Industries Ltd.
Most cited
By later US patents
- Photodecomposable bases and photoresist compositions470US 8,614,047 B2International Business Machines Corporation · 2013
- Manufacture of butanediol and/or tetrahydrofuran from maleic and/or succinic anhydride via .gamma.- butyrolactone97US 4,048,196 ABASF SE · 1977
- Long-chain .alpha.,.omega.-dicarboxylic acids and derivatives thereof and pharmaceutical compositions containing them92US 4,689,344 AEpis S.A. · 1987
- Bottom antireflective coating compositions55US 8,088,548 B2AZ Electronic Materials USA Corp. · 2012
- Organo-platinum complex38US 4,359,425 AShionogi & Co., Ltd. · 1982