C07C 209/72
By reduction of six-membered aromatic rings
Official title: by reduction of six-membered aromatic rings
C07C209/72 (By reduction of six-membered aromatic rings) appears on 83 US grants and 49 published applications in this corpus.
Search patents in C07C- Granted patents
- 83
- Published applications
- 49
- Assignees
- 38
- Inventors
- 260
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 0 |
| 2004 | 0 | 4 |
| 2005 | 0 | 3 |
| 2006 | 4 | 3 |
| 2007 | 1 | 1 |
| 2008 | 2 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 1 | 3 |
| 2013 | 0 | 0 |
| 2014 | 3 | 0 |
| 2015 | 2 | 2 |
| 2016 | 3 | 6 |
| 2017 | 1 | 0 |
| 2018 | 3 | 1 |
| 2019 | 1 | 3 |
| 2020 | 1 | 1 |
| 2021 | 2 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polydentate organic ligand, metallo-supramolecular polymer, polymer film and preparation method thereof9 Dec 2025US 12,492,190 B2Jilin University
- Catalyst composition for hydrogenating 4,4′-methylenedianiline derivatives and method for preparing 4,4′-methylene bis(cyclohexylamine) derivatives using the same23 Apr 2024US 11,964,259 B2Industrial Technology Research Institute
- Metal oxide-supported earth-abundant metal catalysts for highly efficient organic transformations13 Jun 2023US 11,673,125 B2The University of Chicago
- Eco-friendly process for hydrogenation or/and hydrodeoxygenation of organic compound using hydrous ruthenium oxide catalyst23 Mar 2021US 10,954,185 B2Council of Scientific and Industrial Research
- Process for hydrogenating a mixture in the presence of a colorless amine23 Feb 2021US 10,927,066 B2BASF SE
- Organic Photoredox Catalysts, Compositions, and Conversion Processes24 Sep 2026US 2026/0284647 A1Colorado State University Research Foundation
- Method for producing diamine containing cyclohexane ring23 Jul 2026US 2026/0209168 A1Mitsubishi Gas Chemical Company, Inc.
- Process for continuous catalytic hydrogenation of mda29 Jan 2026US 2026/0027535 A1Evonik Operations GmbH
- Process for continuous catalytic hydrogenation of mda29 Jan 2026US 2026/0027536 A1Evonik Operations GmbH
- Process for continuous catalytic hydrogenation of mda29 Jan 2026US 2026/0028304 A1Evonik Operations GmbH
Most cited
By later US patents
- Aiming beam system for optical data reading device237US 5,296,689 ASpectra-Physics Scanning Systems, Inc. · 1994
- Process for reacting an organic compound in the presence of a supported ruthenium catalyst40US 5,936,126 ABASF SE · 1999
- Hydrogenation of unsaturated cyclic compounds28US 5,773,670 A1998
- Hydrogenation of aromatic compounds in which at least one amino group is bonded to an aromatic nucleus25US 5,773,657 ABASF SE · 1998
- Process for the preparation of mixed isomeric methylene-bridged polycyclohexylpolyamines21US 3,959,374 AJefferson Chemical Company, Inc. · 1976