C07C 209/78
From carbonyl compounds
Official title: from carbonyl compounds, e.g. from formaldehyde, and amines having amino groups bound to carbon atoms of six-membered aromatic rings, with formation of methylene-diarylamines
C07C209/78 (From carbonyl compounds) appears on 136 US grants and 122 published applications in this corpus.
Search patents in C07C- Granted patents
- 136
- Published applications
- 122
- Assignees
- 71
- Inventors
- 353
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 10 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 2 | 4 |
| 2004 | 3 | 5 |
| 2005 | 1 | 3 |
| 2006 | 3 | 4 |
| 2007 | 6 | 4 |
| 2008 | 2 | 3 |
| 2009 | 1 | 5 |
| 2010 | 2 | 9 |
| 2011 | 4 | 7 |
| 2012 | 3 | 6 |
| 2013 | 10 | 4 |
| 2014 | 6 | 7 |
| 2015 | 8 | 4 |
| 2016 | 2 | 7 |
| 2017 | 4 | 8 |
| 2018 | 3 | 7 |
| 2019 | 8 | 8 |
| 2020 | 12 | 11 |
| 2021 | 5 | 1 |
| 2022 | 3 | 2 |
| 2023 | 2 | 5 |
| 2024 | 0 | 2 |
| 2025 | 4 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing 1,1,1-trifluoro-2,2-bisarylethane, and 1,1,1-trifluoro-2,2-bisarylethane7 Oct 2025US 12,435,185 B2Central Glass Company, Limited
- Polyamide acid, polyimide, optical film, display device and production methods thereof8 Jul 2025US 12,351,685 B2Central Glass Company, Limited
- Method to selectively produce benzalaniline from a Schiff-base reaction involving aniline and benzaldehyde8 Apr 2025US 12,269,787 B1King Saud University
- Methods for producing arylamine compound and electrophotographic photosensitive member4 Feb 2025US 12,215,065 B2Canon Kabushiki Kaisha
- Method for efficiently synthesizing primary amines26 Sep 2023US 11,766,665 B2East China University of Science and Technology
- Improved process for deprotection of n-formyl protected amines30 Jul 2026US 2026/0217642 A1BASF SE
- Small molecule tracer of alpha-synuclein aggregates, preparation method, and use thereof25 Jun 2026US 2026/0176257 A1Fudan University
- Methods for producing arylamine compound and electrophotographic photosensitive member8 May 2025US 2025/0145557 A1Canon Kabushiki Kaisha
- Partially deuterated 1,4-phenylenediamine-d4 and preparation method and use thereof6 Mar 2025US 2025/0074863 A1Beijing Inst of Tech Deuterium Material Co., Ltd.
- Process for preparing tertiary amines6 Feb 2025US 2025/0042840 A1Le Centre National De La Recherche Scientifique
Most cited
By later US patents
- Lipid containing formulations152US 8,642,076 B2Tekmira Pharmaceuticals Corporation · 2014
- Lipid containing formulations47US 8,034,376 B2Alnylam Pharamaceticals, Inc. · 2011
- Method for the production of methylenedi(phenylamine and methylenedi(phenyl isocyanate)32US 6,433,219 B1BASF SE · 2002
- Process for reducing impurity levels in methylene diphenyamines29US 5,286,760 AMiles Inc. · 1994
- Methylene-crosslinked polyarylamine and process for preparing same23US 5,053,539 AMitsui Toatsu Chemicals, Inc. · 1991