C07C 29/03
Preparation of compounds having hydroxy or o-metal groups bound to a carbon
Official title: by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 (by simultaneous introduction of -OH groups and halogens C07C29/64)
C07C29/03 (Preparation of compounds having hydroxy or o-metal groups bound to a carbon) appears on 392 US grants and 251 published applications in this corpus.
Search patents in C07C- Granted patents
- 392
- Published applications
- 251
- Assignees
- 190
- Inventors
- 845
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 3 | 0 |
| 1980 | 15 | 0 |
| 1981 | 19 | 0 |
| 1982 | 21 | 0 |
| 1983 | 18 | 0 |
| 1984 | 15 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 10 | 0 |
| 1994 | 8 | 0 |
| 1995 | 1 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 5 |
| 2003 | 2 | 8 |
| 2004 | 7 | 15 |
| 2005 | 7 | 7 |
| 2006 | 9 | 9 |
| 2007 | 5 | 4 |
| 2008 | 4 | 11 |
| 2009 | 4 | 12 |
| 2010 | 3 | 11 |
| 2011 | 2 | 6 |
| 2012 | 3 | 9 |
| 2013 | 10 | 13 |
| 2014 | 14 | 16 |
| 2015 | 15 | 20 |
| 2016 | 14 | 9 |
| 2017 | 10 | 4 |
| 2018 | 7 | 11 |
| 2019 | 9 | 6 |
| 2020 | 8 | 12 |
| 2021 | 13 | 16 |
| 2022 | 8 | 14 |
| 2023 | 8 | 11 |
| 2024 | 9 | 8 |
| 2025 | 3 | 5 |
| 2026 | 3 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for the preparation of 1,2-propanediol28 Apr 2026US 12,612,346 B2Evonik Operations GmbH
- Method for producing isobutylene, method for producing methacrylic acid, and method for producing methyl methacrylate10 Mar 2026US 12,570,598 B2Mitsubishi Chemical Corporation
- Integrated production process of tert-butyl ethers of glycerol or isooctene stream13 Jan 2026US 12,522,553 B2Petroleo Brasileiro S.A. - Petrobras
- Method for preparing isopropyl alcohol26 Aug 2025US 12,398,086 B2LG Chem.Ltd.
- Method of producing a fuel additive1 Apr 2025US 12,264,123 B2Sabic Global Technologies B.V.
- Method of preparing isopropyl alcohol8 Oct 2026US 2026/0308090 A1LG Chem.Ltd.
- Method for preparing isopropyl alcohol1 Oct 2026US 2026/0296999 A1LG Chem.Ltd.
- Method for purifying isopropyl alcohol20 Aug 2026US 2026/0242316 A1LG Chem.Ltd.
- Method for purifying isopropyl alcohol13 Aug 2026US 2026/0234087 A1LG Chem.Ltd.
- Method of preparing isopropyl alcohol6 Aug 2026US 2026/0225980 A1LG Chem.Ltd.
Most cited
By later US patents
- Phase transfer catalysis of heterogeneous reactions by quaternary salts123US 3,992,432 AContinental Oil Company · 1976
- Nano-structure supported solid regenerative polyamine and polyamine polyol absorbents for the separation of carbon dioxide from gas mixtures including the air77US 7,795,175 B2University of Southern California · 2010
- Dimerization of isobutene53US 4,100,220 APetro-Tex Chemical Corporation · 1978
- Olefin hydration process52US 4,012,452 ANational Distillers and Chemical Corporation · 1977
- Process for oxidation of hydrocarbons51US 4,263,448 AHalcon Research and Development Corp. · 1981