C07C 31/08
Ethanol
C07C31/08 (Ethanol) appears on 102 US grants and 112 published applications in this corpus.
Search patents in C07C- Granted patents
- 102
- Published applications
- 112
- Assignees
- 88
- Inventors
- 298
- Latest grant
- 8 Jul 2025
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 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 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 | 2 | 3 |
| 2012 | 1 | 5 |
| 2013 | 2 | 9 |
| 2014 | 5 | 7 |
| 2015 | 13 | 7 |
| 2016 | 3 | 6 |
| 2017 | 5 | 5 |
| 2018 | 2 | 10 |
| 2019 | 6 | 14 |
| 2020 | 9 | 10 |
| 2021 | 8 | 8 |
| 2022 | 5 | 3 |
| 2023 | 3 | 6 |
| 2024 | 2 | 7 |
| 2025 | 3 | 3 |
| 2026 | 0 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods, apparatuses, and systems for conversion of bioethanol to renewable jet fuel8 Jul 2025US 12,351,763 B2Honeywell International Inc.
- Systems and methods for on-site liquid alcohol production from carbon dioxide17 Jun 2025US 12,331,008 B2Air Company Holdings, Inc.
- Ethanol13 May 2025US 12,297,308 B2Sekisui Chemical Co., Ltd.
- Method for producing conjugated diene polymer8 Oct 2024US 12,110,355 B2Sekisui Chemical Co., Ltd.
- Systems and methods for on-site liquid alcohol production from carbon dioxide5 Mar 2024US 11,919,841 B2Air Company Holdings, Inc.
- Polyethylene terephthalate produced from used tires1 Oct 2026US 2026/0297247 A1
- Process and system for dehydrating a product stream in ethanol production10 Sep 2026US 2026/0263961 A1Whitefox Technologies Limited
- Gas treatment method and gas treatment device13 Aug 2026US 2026/0233154 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Separation process of alcohol mixtures with high water content by liquid-liquid extraction23 Jul 2026US 2026/0209149 A1ENI S. p. A.
- Oil synthesis device and oil synthesis method2 Jul 2026US 2026/0184999 A1Oono Development Co., Ltd
Most cited
By later US patents
- Separation of ethanol from isopropanol by azeotropic distillation86US 5,415,741 A1995
- Separation of ethanol from isopropanol by extractive distillation84US 5,348,625 A1994
- Process for the production of ethanol and isopropanol48US 5,488,185 AThe BOC Group, Inc. · 1996
- Upgrading synthesis gas46US 4,478,955 AThe Standard Oil Company · 1984
- Thermolytic fragmentation of sugars37US 10,570,078 B2Haldor TopsøE A/S · 2020