C07C 209/26
By reduction with hydrogen
Official title: by reduction with hydrogen
C07C209/26 (By reduction with hydrogen) appears on 192 US grants and 120 published applications in this corpus.
Search patents in C07C- Granted patents
- 192
- Published applications
- 120
- Assignees
- 111
- Inventors
- 546
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 5 | 1 |
| 2003 | 2 | 3 |
| 2004 | 6 | 7 |
| 2005 | 2 | 2 |
| 2006 | 4 | 0 |
| 2007 | 3 | 5 |
| 2008 | 4 | 4 |
| 2009 | 0 | 7 |
| 2010 | 3 | 7 |
| 2011 | 8 | 6 |
| 2012 | 2 | 7 |
| 2013 | 7 | 6 |
| 2014 | 7 | 3 |
| 2015 | 5 | 7 |
| 2016 | 7 | 3 |
| 2017 | 5 | 9 |
| 2018 | 4 | 6 |
| 2019 | 9 | 2 |
| 2020 | 6 | 7 |
| 2021 | 6 | 2 |
| 2022 | 1 | 7 |
| 2023 | 3 | 8 |
| 2024 | 3 | 6 |
| 2025 | 4 | 2 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyalkyl p-phenylenediamine anti-degradants and intermediates and preparation method thereof28 Jul 2026US 12,692,220 B2Sennics Co., Ltd.
- Aliphatic amine and nitrile synthesis through catalytic CO hydrogenation in the presence of ammonia23 Jun 2026US 12,662,444 B2Washington State University
- Products obtained by the conversion of glycolaldehyde derivatives and aminating agents and their conversion to ethyleneamines and ethanolamines24 Mar 2026US 12,583,827 B2BASF SE
- Process for the synthesis of twin-tail triamines17 Feb 2026US 12,552,735 B2Syensqo SA
- Gas-phase process for the conversion of glycolaldehyde with an aminating agent30 Sep 2025US 12,428,383 B2BASF SE
- Process for preparing secondary and/or tertiary amines in the presence of a manganese-doped copper catalyst11 Jun 2026US 2026/0159472 A1Arkema France
- Metal-supporting nonwoven fabric and production method thereof, catalyst, unsaturated compound hydrogenation method, and carbon-carbon bond forming method9 Oct 2025US 2025/0312773 A1Ebara Corporation
- Preparation method of multi-channel co@cm ceramic catalytic membrane18 Sep 2025US 2025/0288982 A1Nanjing Tech University
- Accelerator for epoxy resins8 Aug 2024US 2024/0262956 A1Sika Technology AG
- Branched Technologies1 Aug 2024US 2024/0254068 A1SCION Holdings LLC
Most cited
By later US patents
- Metal-ligand complex catalyzed processes44US 6,252,121 B1Union Carbide Chemicals & Plastics Technology Corporation · 2001
- Process for the preparation of chiral 1-aryl-2-aminopropanes41US 5,360,724 ACelgene Corporation · 1994
- Process for preparing amines28US 6,525,222 B2BASF SE · 2003
- Production of tertiary amines by reductive alkylation26US 4,190,601 AUnion Carbide Corporation · 1980
- Process for producing N,N'-disubstituted paraphenylene diamine mixtures by sequential reductive alkylation22US 4,900,868 AMonsanto Company · 1990