C07C 37/05
By substitution of a nh2 group
Official title: by substitution of a NH2 group
C07C37/05 (By substitution of a nh2 group) appears on 12 US grants and 3 published applications in this corpus.
Search patents in C07C- Granted patents
- 12
- Published applications
- 3
- Assignees
- 10
- Inventors
- 23
- Latest grant
- 19 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for preparing resorcinol through micro-channel reaction19 Sep 2023US 11,760,709 B2Inner Mongolia Sheng Tang International Mongolian
- Method for preparing 1,3,5-triaminobenzene and hydrolyzing it into high-purity phloroglucinal15 May 2007US 7,217,840 B2PHV Analytic
- Resorcinol production from the hydrolysis of meta-phenylenediamine11 Mar 2003US 6,531,637 B1Indspec Chemical Corporation
- Desensitized TNT; its preparation and use10 Nov 1981US 4,300,001 AOce-Andeno B.V.
- Hydroquinone by hydrolysis of p-aminophenol or salts26 May 1981US 4,270,010 A
- System and process for continuous preparation of meta-cresol by nox1 May 2025US 2025/0136537 A1Deepak Nitrite Limited
- Method for preparing resorcinol through micro-channel reaction21 Apr 2022US 2022/0119330 A1Inner Mongolia Sheng Tang International Mongolian Medicine Research Institute Co., Ltd.
- Method for preparing 13 5-triaminobenzene and hydrolyzing it into high-purity phloroglucinal28 Jul 2005US 2005/0165256 A1Phv Analyitic
Most cited
By later US patents
- Hydrolysis of toluene diamines to produce methyl resorcinols7US 3,933,925 AKoppers Company, Inc. · 1976
- Production of hydroquinone7US 3,937,741 AKoppers Company, Inc. · 1976
- Process for producing pyrogallol and derivatives thereof2US 3,932,538 AMitsubishi Chemical Industries Limited · 1976
- Benzene-1,3,5-tris-acetoxime and the process for making phloroglucinol therewith2US 4,071,555 AAkzona Incorporated · 1978
- Hydroquinone by hydrolysis of p-aminophenol or salts2US 4,270,010 A1981