C07C 275/68
N-nitroso ureas
C07C275/68 (N-nitroso ureas) appears on 15 US grants and 6 published applications in this corpus.
Search patents in C07C- Granted patents
- 15
- Published applications
- 6
- Assignees
- 12
- Inventors
- 45
- Latest grant
- 9 Mar 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- On-demand rapid synthesis of lomustine under continuous flow conditions9 Mar 2021US 10,941,111 B2Purdue Research Foundation
- Safe and efficient process for the preparation of carmustine31 Dec 2019US 10,519,104 B2NerPharMa S.r.l.
- Group of a novel anti-cancer compounds with specific structure31 Oct 2006US 7,129,366 B2Yang's Biochem Co. Ltd.
- Substituted benzene compounds17 Feb 1998US 5,719,151 A
- Method of preparation of optically active .alpha.-amino-acids25 Jun 1991US 5,026,906 AEniricerche S. p. A.
- Treatment of mgmt deficient cancer with 2-fluoroethyl-substituted nitrosoureas and other compounds6 Jul 2023US 2023/0212202 A1Yale University
- On-Demand Rapid Synthesis of Lomustine Under Continuous Flow Conditions16 Apr 2020US 2020/0115330 A1Purdue Research Foundation
- Process for preparation of carmustine6 Jun 2019US 2019/0169116 A1Intas Pharmaceuticals Ltd.
- Safe and efficient process for the preparation of carmustine7 Sep 2017US 2017/0253557 A1NerPharMa S.r.l.
- Conjugates of cytotoxic drugs7 Jun 2012US 2012/0142722 A1
Most cited
By later US patents
- Substituted benzene compounds22US 5,719,151 A1998
- 1-Tetrahydroxycyclopentyl-3-nitroso-3-(2-chloroethyl)-urea antitumor agents7US 4,039,578 A1977
- Novel nitrosourea compounds and process for preparing the same5US 4,182,757 ATanabe Seiyaku Co., Ltd. · 1980
- Process of preparing 1,3-bis(2-chloroethyl)-1-nitrosourea4US 4,028,410 AThe United States of America as represented by the Secretary of the Department of Health, Education and Welfare · 1977
- Bis(nitrosoureido)-polyol derivatives3US 4,237,273 ARichter Gedeon Vegyeszeti Gyar Rt. · 1980