C07C 31/12
Containing four carbon atoms
Official title: containing four carbon atoms
C07C31/12 (Containing four carbon atoms) appears on 95 US grants and 97 published applications in this corpus.
Search patents in C07C- Granted patents
- 95
- Published applications
- 97
- Assignees
- 55
- Inventors
- 245
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 10 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 6 |
| 2014 | 4 | 16 |
| 2015 | 5 | 7 |
| 2016 | 8 | 3 |
| 2017 | 7 | 10 |
| 2018 | 4 | 11 |
| 2019 | 7 | 10 |
| 2020 | 8 | 12 |
| 2021 | 10 | 5 |
| 2022 | 3 | 2 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 3 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Crystalline forms of solvates of tryptophan derivatives, compositions comprising them and uses thereof11 Aug 2026US 12,703,685 B2Galimedix Therapeutics, Inc.
- Process for the preparation of 5-[[[(2S)-2-amino-3-[4-(aminocarbonyl)-2,6-dimethylphenyl]-1-oxopropyl] [(1S)-1-(4-phenyl-1H-imidazol-2-yl)ethyl]amino] methyl-2-methoxybenzoic acid and its polymorphs thereof26 May 2026US 12,637,431 B2Msn Laboratories Private Limited, R&D Center
- Embedded hydrothermal-resistant NiSn-CS nano-catalyst and preparation method therefor and application thereof10 Mar 2026US 12,569,837 B2Guangdong University of Technology
- Equipment for production of butanol and octanol and triple-effect distillation method13 Jan 2026US 12,521,644 B2Tianjin Shenlan Chemical Technology Co., Ltd
- Methods and compositions for the catalytic upgrading of alcohols9 Jul 2024US 12,030,839 B2Massachusetts Institute of Technology
- Mixed guerbet reaction of ethanol and methanol to produce isobutanol8 Oct 2026US 2026/0308094 A1BASF SE
- Process for the preparation of polyisobutene from olefins from isobutanol obtained from mixed guerbet reaction of ethanol and methanol8 Oct 2026US 2026/0308287 A1BASF SE
- Method for dehydrating a feedstock comprising an alcohol for the production of alkenes5 Mar 2026US 2026/0061405 A1Ifp Energies Nouvelles
- Tryptamine derivatives25 Dec 2025US 2025/0388537 A1Caamtech, Inc.
- Embedded hydrothermal-resistant nisn-cs nano-catalyst and preparation method therefor and application thereof17 Jul 2025US 2025/0229261 A1Guangdong University of Technology
Most cited
By later US patents
- Adsorption separation cycle18US 4,373,935 AUnion Carbide Corporation · 1983
- Catalysts for producing alcohols from olefins and synthesis gas18US 4,456,694 AThe Standard Oil Company · 1984
- Process for the conversion of an alkane to a mixture of an alcohol and a ketone17US 4,459,427 AThe British Petroleum Company p.l.c. · 1984
- Array for processing materials16US 9,334,518 B2Xyleco, Inc. · 2016
- Production of acetic acid and propionic acid and their esters15US 4,366,259 ATexaco Inc. · 1982