C07C 51/36
By hydrogenation of carbon-to-carbon unsaturated bonds
Official title: by hydrogenation of carbon-to-carbon unsaturated bonds
C07C51/36 (By hydrogenation of carbon-to-carbon unsaturated bonds) appears on 275 US grants and 187 published applications in this corpus.
Search patents in C07C- Granted patents
- 275
- Published applications
- 187
- Assignees
- 177
- Inventors
- 746
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 16 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 8 | 0 |
| 1997 | 0 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 11 | 0 |
| 2002 | 5 | 4 |
| 2003 | 2 | 10 |
| 2004 | 9 | 5 |
| 2005 | 5 | 2 |
| 2006 | 2 | 9 |
| 2007 | 2 | 7 |
| 2008 | 4 | 7 |
| 2009 | 3 | 7 |
| 2010 | 1 | 6 |
| 2011 | 5 | 13 |
| 2012 | 4 | 5 |
| 2013 | 5 | 7 |
| 2014 | 11 | 9 |
| 2015 | 12 | 11 |
| 2016 | 10 | 16 |
| 2017 | 9 | 4 |
| 2018 | 7 | 8 |
| 2019 | 7 | 11 |
| 2020 | 7 | 9 |
| 2021 | 7 | 8 |
| 2022 | 4 | 8 |
| 2023 | 7 | 4 |
| 2024 | 3 | 5 |
| 2025 | 4 | 7 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogenation catalysts and method for benzoic acid hydrogenation reaction29 Sep 2026US 12,746,534 B2Hunan Changlian New Material Technology Co., Ltd.
- Method for preparation of 1, 4-cyclohexanedimethanol23 Jun 2026US 12,662,439 B2Hanwha Solutions Corporation
- Preparation method of biobased adipic acid31 Mar 2026US 12,590,050 B2Beijing University of Chemical Technology
- Halloysite-based nanocomposites and methods of making and using the same23 Dec 2025US 12,502,655 B2
- Formulation to solidify cooking oil or grease and methods of making and using the same23 Sep 2025US 12,419,320 B2The Kitchen Laboratories, LLC
- Organic Photoredox Catalysts, Compositions, and Conversion Processes24 Sep 2026US 2026/0284647 A1Colorado State University Research Foundation
- Upcycling waste polystyrene to adipic acid through a hybrid chemical and biological process30 Apr 2026US 2026/0117039 A1Alliance for Energy Innovation, LLC
- Halloysite-based nanocomposites and methods of making and using the same5 Mar 2026US 2026/0061396 A1University of New Orleans
- Formulation to solidify cooking oil or grease and methods of making and using the same12 Feb 2026US 2026/0041111 A1The Kitchen Laboratories, LLC
- Recycled content paraxylene and related chemical compounds from waste plastic5 Feb 2026US 2026/0035624 A1Eastman Chemical Company
Most cited
By later US patents
- Hydrogenated naphthalenes137US 4,391,731 AHoffmann-La Roche Inc. · 1983
- Liquid crystalline materials62US 4,113,647 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1978
- Ruthenium-phosphine complex53US 4,691,037 ATakasago Perfumery Co., Ltd. · 1987
- Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by using a catalyst containing macropores51US 6,284,917 B1BASF SE · 2001
- Process for preparing catalyst with copper or zinc and with chromium, molybdenum, tungsten, or vanadium, and product thereof48US 5,134,108 AEngelhard Corporation · 1992