C07B 43/02
Formation or introduction of functional groups containing nitrogen: of nitro or nitroso
Official title: of nitro or nitroso groups
C07B43/02 (Formation or introduction of functional groups containing nitrogen: of nitro or nitroso) appears on 46 US grants and 20 published applications in this corpus.
Search patents in C07B- Granted patents
- 46
- Published applications
- 20
- Assignees
- 36
- Inventors
- 113
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 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 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 3 | 3 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Nitrosation reagents and methods4 Nov 2025US 12,459,909 B2The Regents of the University of California
- Process and plant for the adiabatic nitration of aromatic compounds9 Mar 2021US 10,941,087 B2Josef Meissner GmbH & Co. KG
- Method for producing C4-C15 lactams14 Apr 2020US 10,618,873 B2BASF SE
- Separation of enantiomers of 3-ethylbicyclo[3.2.0]hept-3-en-6-one11 Dec 2018US 10,150,723 B2Novassay S.A.
- Nitrated lipids and methods of making and using thereof16 Jan 2018US 9,867,795 B2Morehouse School of Medicine
- Nitrosation Reagents and Methods9 Apr 2026US 2026/0098021 A1
- Vinyl thianthrenium compound, process for its preparation and its use for transferring a vinyl group26 Dec 2024US 2024/0425474 A1Studiengesellschaft Kohle gGmbH
- Methods of forming low salt nitrogen-based fertilizer15 Feb 2024US 2024/0051896 A1
- Nitrosation Reagents and Methods3 Aug 2023US 2023/0242495 A1The Regents of the University of California
- Process and plant for the adiabatic nitration of aromatic compounds16 Jan 2020US 2020/0017421 A1Josef Meissner GmbH & Co. KG
Most cited
By later US patents
- Nitrated lipids and methods of making and using thereof51US 7,776,916 B2The UAB Research Foundation · 2010
- Nitrated lipids and methods of making and using thereof23US 9,006,473 B2Morehouse School of Medicine · 2015
- Nitrated lipids and methods of making and using thereof21US 8,309,526 B2Morehouse School of Medicine · 2012
- Vapor phase nitration of aromatic compounds18US 4,415,744 AMonsanto Company · 1983
- Nitrated lipids and methods of making and using thereof16US 9,295,678 B2Morehouse School of Medicine · 2016