C07C 209/38
By reduction of nitroso groups
Official title: by reduction of nitroso groups
C07C209/38 (By reduction of nitroso groups) appears on 28 US grants and 17 published applications in this corpus.
Search patents in C07C- Granted patents
- 28
- Published applications
- 17
- Assignees
- 19
- Inventors
- 63
- Latest grant
- 8 Oct 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 3 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and device for treating nitroso compound8 Oct 2019US 10,434,459 B2Mitsubishi Hitachi Power Systems, Ltd.
- Methods of chemical synthesis of diaminophenothiazinium compounds including methylthioninium chloride (MTC)24 Sep 2019US 10,421,733 B2WisTa Laboratories Ltd.
- Methods of chemical synthesis of Diaminophenothiazinium compounds including methylthioninium chloride (MTC)14 Aug 2018US 10,047,062 B2WisTa Laboratories Ltd.
- Methods of chemical synthesis of diaminophenothiazinium compounds including methylthioninium chloride (MTC)19 Sep 2017US 9,765,042 B2WisTa Laboratories Ltd.
- Solid base catalyst and method for making and using the same5 Apr 2016US 9,302,259 B2Jiangsu Sinorgchem Technology Co., Ltd.
- Catalyst mixture17 Sep 2020US 2020/0290024 A1N. E. Chemcat Corporation
- Methods of chemical synthesis of diaminophenothiazinium compounds including methylthioninium chloride (mtc)15 Nov 2018US 2018/0327372 A1WisTa Laboratories Ltd.
- Method and device for treating nitroso compound4 Jan 2018US 2018/0001252 A1Mitsubishi Hitachi Power Systems, Ltd.
- Methods of chemical synthesis of diaminophenothiazinium compounds including methylthioninium chloride (mtc)30 Nov 2017US 2017/0342041 A1WisTa Laboratories Ltd.
- Methods of chemical synthesis of diaminophenothiazinium compounds including methylthioninium chloride (mtc)1 Sep 2016US 2016/0251325 A1WisTa Laboratories Ltd.
Most cited
By later US patents
- Method of preparing 4-aminodiphenylamine70US 5,117,063 AMonsanto Company · 1992
- Method of preparing 4-aminodiphenylamine27US 5,453,541 AMonsanto Company · 1995
- Method of preparing 4-aminodiphenylamine27US 5,608,111 AFlexsys America L. P. · 1997
- Process for the production of optionally substituted 4-aminodiphenylamines27US 5,739,403 ABayer Aktiengesellschaft · 1998
- Process for preparing para-phenylenediamine derivatives19US 5,840,982 AUniroyal Chemical Company, Inc. · 1998