C07C 31/225
Glycerol
Official title: {Glycerol}
C07C31/225 (Glycerol) appears on 32 US grants and 34 published applications in this corpus.
Search patents in C07C- Granted patents
- 32
- Published applications
- 34
- Assignees
- 33
- Inventors
- 100
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 1 |
| 2018 | 2 | 6 |
| 2019 | 1 | 5 |
| 2020 | 4 | 1 |
| 2021 | 3 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dehydration and cracking of alpha-, beta-dihydroxy carbonyl compounds to lactic acid and other products22 Apr 2025US 12,281,067 B2Archer Daniels Midland Company
- Coated biological composition18 Feb 2025US 12,226,532 B2Vivex Biologics Group, Inc.
- Polycarbonate polyol and polyurethane21 Mar 2023US 11,608,405 B2Mitsubishi Chemical Corporation
- Stabilization of polyhydric alcohols by steam injection21 Dec 2021US 11,203,561 B2Shell Oil Company
- Alkaline pH-modified edible casein-based films and coatings, and method for the making thereof2 Feb 2021US 10,906,950 B2The United States of America as represented by the Secretary of Agriculture
- Lithography method8 Oct 2026US 2026/0310079 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Direct conversion of glycerol to acrylic acid over wox/zrox and mixed metal oxide18 Dec 2025US 2025/0382254 A1
- Dehydration and cracking of alpha-, beta-dihydroxy carbonyl compounds to lactic acid and other products18 Sep 2025US 2025/0289777 A1Archer Daniels Midland Company
- Systems and methods for using glycerol-based scale inhibitors in waste streams14 Aug 2025US 2025/0257023 A1Cameron International Corporation
- Dehydration and cracking of alpha-, beta-dihydroxy carbonyl compounds to lactic acid and other products3 Jun 2021US 2021/0163394 A1Archer Daniels Midland Company
Most cited
By later US patents
- Hydrocracking of carbohydrates making glycerol, glycols and other polyols32US 5,026,927 AThe United States of America as represented by the United States Department of Energy · 1991
- Process for purifying crude glycerol30US 4,990,695 AUnilever Patent Holdings B.V. · 1991
- Environmentally benign anti-icing or deicing fluids employing triglyceride processing by-products20US 7,270,768 B2MLI Associates, L.L.C. · 2007
- Environmentally benign anti-icing or deicing fluids employing triglyceride processing by-products6US 7,854,856 B2MLI Associates, L.L.C. · 2010
- Process for the manufacture of fatty acid nitriles and glycerol from glycerides, especially from natural fats and oils5US 4,234,509 AHoechst Aktiengesellschaft · 1980