C07C 249/02
Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton: of
Official title: of compounds containing imino groups
C07C249/02 (Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton: of) appears on 252 US grants and 237 published applications in this corpus.
Search patents in C07C- Granted patents
- 252
- Published applications
- 237
- Assignees
- 196
- Inventors
- 826
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 1 |
| 2002 | 9 | 7 |
| 2003 | 6 | 8 |
| 2004 | 10 | 11 |
| 2005 | 7 | 6 |
| 2006 | 3 | 8 |
| 2007 | 7 | 9 |
| 2008 | 9 | 6 |
| 2009 | 5 | 12 |
| 2010 | 3 | 7 |
| 2011 | 3 | 12 |
| 2012 | 9 | 12 |
| 2013 | 9 | 6 |
| 2014 | 11 | 17 |
| 2015 | 11 | 15 |
| 2016 | 15 | 11 |
| 2017 | 9 | 9 |
| 2018 | 8 | 9 |
| 2019 | 6 | 13 |
| 2020 | 18 | 14 |
| 2021 | 6 | 12 |
| 2022 | 8 | 8 |
| 2023 | 6 | 9 |
| 2024 | 7 | 7 |
| 2025 | 3 | 4 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods for preparing (2S,3R,4R)-4,5-dihydroxyisoleucine derivative and intermediates thereof15 Sep 2026US 12,735,384 B2Inner Mongolia Duhe Innovation R & D Tech Co., Ltd
- Synthetic methods for preparation of 4-(2-chloro-4-methoxy-5-methylphenyl)-n-[(1S)-2-cyclopropyl-1-(3-fluoro-4-methylphenyl)ethyl]-5-methyl-n-prop-2-ynyl-1,3-thiazol-2-amine24 Mar 2026US 12,582,634 B2Neurocrine Biosciences, Inc.
- Tedizolid intermediate and efficient preparation method thereof3 Mar 2026US 12,565,482 B2Nanjing Chempion Biotechnology Co., Ltd.
- 3-substituted phenylamidine compounds, preparation and use thereof10 Feb 2026US 12,545,639 B2Pi Industries Ltd.
- Method for preparing 18F-BPA and intermediate17 Jun 2025US 12,331,067 B2Neuboron Medtech Ltd.
- Method for synthesizing fluoroalkyl-substituted 4,4'-diaminodiphenylmethane compound16 Jul 2026US 2026/0200826 A1Hainan University
- Method for producing alkylsilyloxy-substituted benzylamine compound25 Jun 2026US 2026/0176238 A1Sekisui Medical Co., Ltd.
- Method for producing carbonyl halide28 May 2026US 2026/0145949 A1Mitsubishi Gas Chemical Company, Inc.
- Methods for preparing (2s,3r,4r)-4,5-dihydroxyisoleucine derivative and intermediates thereof1 Jan 2026US 2026/0001836 A1Inner Mongolia Duhe Innovation R & D Tech Co., Ltd
- Selective partial reduction of esters using group iv transition metal catalysts and uses thereof27 Mar 2025US 2025/0100984 A1Baylor University
Most cited
By later US patents
- Ligands for metals and improved metal-catalyzed processes based thereon143US 6,307,087 B1Massachusetts Institute of Technology · 2001
- Ligands for metals and improved metal-catalyzed processes based thereon100US 6,395,916 B1Massachusetts Institute of Technology · 2002
- Ligands for metals and improved metal-catalyzed processes based thereon93US 7,223,879 B2Massachusetts Institute of Technology · 2007
- Ligands for metals and improved metal-catalyzed processes based thereon83US 6,946,560 B2Massachusetts Institute of Technology · 2005
- Arylamine synthesis81US 6,323,366 B1Massachusetts Institute of Technology · 2001