C07B 43/04
Formation or introduction of functional groups containing nitrogen: of amino groups
Official title: of amino groups
C07B43/04 (Formation or introduction of functional groups containing nitrogen: of amino groups) appears on 122 US grants and 122 published applications in this corpus.
Search patents in C07B- Granted patents
- 122
- Published applications
- 122
- Assignees
- 103
- Inventors
- 367
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 0 |
| 2002 | 4 | 1 |
| 2003 | 3 | 1 |
| 2004 | 2 | 4 |
| 2005 | 3 | 5 |
| 2006 | 4 | 6 |
| 2007 | 1 | 1 |
| 2008 | 4 | 2 |
| 2009 | 3 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 3 |
| 2013 | 2 | 6 |
| 2014 | 5 | 6 |
| 2015 | 6 | 5 |
| 2016 | 5 | 5 |
| 2017 | 6 | 8 |
| 2018 | 6 | 19 |
| 2019 | 15 | 7 |
| 2020 | 10 | 8 |
| 2021 | 6 | 8 |
| 2022 | 5 | 4 |
| 2023 | 2 | 3 |
| 2024 | 6 | 5 |
| 2025 | 2 | 6 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Process for preparing 4-amino-pyridazines10 Dec 2024US 12,162,841 B2BASF SE
- Methods of iron catalyzed C-H bond amination24 Sep 2024US 12,098,126 B2Laboratory for Synthetic Chemistry and Chemical Biology Limited
- Heterocyclic carboxylic acid hydrazide ligand and use thereof in copper-catalyzed aryl halide coupling reaction8 Oct 2026US 2026/0308125 A1Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
- Nickel-Based Catalysts for the Selective (DE)Hydrogenative Coupling of Benzyl Alcohols with Azobenzenes19 Mar 2026US 2026/0078139 A1Council of Scientific and Industrial Research (An Indian Registered Body Incorporated Under
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Most cited
By later US patents
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds78US 6,759,554 B2Massachusetts Institute of Technology · 2004
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds72US 6,867,298 B2Massachusetts Institute of Technology · 2005
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds62US 7,115,784 B2Massachusetts Institute of Technology · 2006
- Process for preparation of epoxy compounds essentially free of organic halides44US 5,578,740 AThe Dow Chemical Company · 1996
- Catalytic hydrogenation of carbon-heteroatom double bonds33US 7,446,236 B2Solvias AG · 2008