C07C 209/48
By reduction of nitriles
Official title: by reduction of nitriles
C07C209/48 (By reduction of nitriles) appears on 392 US grants and 257 published applications in this corpus.
Search patents in C07C- Granted patents
- 392
- Published applications
- 257
- Assignees
- 150
- Inventors
- 831
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 9 | 0 |
| 1980 | 8 | 0 |
| 1981 | 13 | 0 |
| 1982 | 11 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 11 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 9 | 0 |
| 2000 | 12 | 0 |
| 2001 | 16 | 3 |
| 2002 | 16 | 10 |
| 2003 | 6 | 10 |
| 2004 | 6 | 14 |
| 2005 | 15 | 12 |
| 2006 | 6 | 4 |
| 2007 | 6 | 11 |
| 2008 | 11 | 18 |
| 2009 | 5 | 12 |
| 2010 | 8 | 23 |
| 2011 | 16 | 11 |
| 2012 | 11 | 11 |
| 2013 | 10 | 27 |
| 2014 | 11 | 8 |
| 2015 | 18 | 7 |
| 2016 | 9 | 11 |
| 2017 | 8 | 13 |
| 2018 | 8 | 3 |
| 2019 | 4 | 7 |
| 2020 | 8 | 12 |
| 2021 | 7 | 9 |
| 2022 | 4 | 7 |
| 2023 | 4 | 6 |
| 2024 | 3 | 4 |
| 2025 | 4 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for the preparation of hexamethylenediamine by hydrogenation of adiponitrile in the presence of Raney nickel and a basic co-catalyst5 May 2026US 12,617,750 B2BASF SE
- Materials comprising carbon-embedded nickel nanoparticles, processes for their manufacture, and use as heterogeneous catalysts10 Feb 2026US 12,544,741 B2Evonik Operations GmbH
- Process for the preparation of hexamethylenediamine by hydrogenation of adiponitrile with reduced formation of diaminocyclohexane16 Sep 2025US 12,415,775 B2BASF SE
- Method for producing aromatic aminomethyl3 Jun 2025US 12,319,635 B2Mitsubishi Gas Chemical Company, Inc.
- Materials comprising carbon-embedded cobalt nanoparticles, processes for their manufacture, and use as heterogeneous catalysts27 May 2025US 12,311,342 B2Evonik Operations GmbH
- Sustainable preparation of hexamethylene diisocyanate for the production of polyurethane17 Sep 2026US 2026/0274787 A1Covestro Deutschland AG
- Process for the preparation of hexamethylenediamine by hydrogenation of adiponitrile in the presence of raney nickel and a basic co-catalyst20 Aug 2026US 2026/0242328 A1BASF SE
- Method for manufacture of isophoronediamine2 Oct 2025US 2025/0304525 A1BASF SE
- Iron phosphide nanoparticles, and composite body and reduction catalyst each containing same31 Jul 2025US 2025/0242338 A1Osaka University
- Sponge cobalt catalyst composition and method for producing same10 Oct 2024US 2024/0335822 A1JGC Catalysts and Chemicals Ltd.
Most cited
By later US patents
- Raney iron catalyst and a process for hydrogenating organic compounds using said catalyst36US 6,087,296 AE. I. Du Pont de Nemours and Company · 2000
- Process for simultaneously preparing caprolactam and hexamethylene diamine36US 6,147,208 ABASF SE · 2000
- Process for the preparation of supported metal catalysts30US 4,361,500 AMagyar Tudomanyos Akademia Kosponti Hivatala · 1982
- Method for simultaneous preparation of 6-aminocapronitrile and hexamethylene diamine30US 6,462,220 B1BASF SE · 2002
- Hydrogenation of nitriles in absence of secondary reaction suppressant29US 4,003,933 APhillips Petroleum Company · 1977