C07C 211/12
1,6-diaminohexanes
Official title: 1,6-Diaminohexanes
C07C211/12 (1,6-diaminohexanes) appears on 26 US grants and 35 published applications in this corpus.
Search patents in C07C- Granted patents
- 26
- Published applications
- 35
- Assignees
- 18
- Inventors
- 100
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 2 | 5 |
| 2012 | 2 | 2 |
| 2013 | 1 | 2 |
| 2014 | 2 | 0 |
| 2015 | 1 | 4 |
| 2016 | 2 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 2 | 3 |
| 2020 | 2 | 2 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 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 with reduced formation of diaminocyclohexane16 Sep 2025US 12,415,775 B2BASF SE
- Method for preparing primary diamines by Kolbe electrolysis coupling reaction14 Dec 2021US 11,198,669 B2BASF France SAS
- Lysine and proline based flame retardants21 Jul 2020US 10,717,930 B2International Business Machines Corporation
- Method for synthesising partially N-hydroxyethylated tertiary 1,6-hexanediamines14 Apr 2020US 10,618,866 B2Ifp Energies Nouvelles
- Lysine and proline based flame retardants25 Jun 2019US 10,329,488 B2International Business Machines Corporation
- Method for producing diamine and dicarboxylic acid, method for recycling polyamide, and polyamide6 Aug 2026US 2026/0225993 A1Asahi Kasei Kabushiki Kaisha
- Process for removing carbon dioxide from a liquid aqueous stream30 Jul 2026US 2026/0216643 A1BASF SE
- Method for the Processing and Transport of Hexane-1,6-Diamine or Pentane-1,5-Diamine10 Oct 2024US 2024/0336555 A1Covestro Deutschland AG
- Process for the preparation of hexamethylenediamine by hydrogenation of adiponitrile with reduced formation of diaminocyclohexane18 May 2023US 2023/0150918 A1BASF SE
- Process for recovering adiponitrile1 Jul 2021US 2021/0198185 A1Ascend Performance Materials Operations LLC
Most cited
By later US patents
- Water soluble organic ammonium per halides35US 4,886,915 AGreat Lakes Chemical Corporation · 1989
- Preparing tertiary amine from formaldehyde and primary and/or secondary amine8US 4,757,144 AKao Corporation · 1988
- Diimines and secondary diamines7US 7,288,677 B2Albemarle Corporation · 2007
- Process for the manufacture of aliphatic alpha, omega amino nitriles6US 6,222,059 B1BASF SE · 2001
- Diimines and secondary diamines5US 7,767,858 B2Albemarle Corporation · 2010