C09B 37/00
Azo dyes prepared by coupling the diazotised amine with itself
C09B37/00 (Azo dyes prepared by coupling the diazotised amine with itself) appears on 11 US grants and 5 published applications in this corpus.
Search patents in C09B- Granted patents
- 11
- Published applications
- 5
- Assignees
- 9
- Inventors
- 31
- Latest grant
- 7 Dec 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 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 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 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 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for producing a liquid formulation of salts of sulphonic-acid azo dyes7 Dec 2010US 7,847,073 B2BASF SE
- Method for producing a liquid formulation of salts of sulfoacidic azo dyes10 Feb 2009US 7,488,810 B2BASF SE
- Azo dye compound22 May 2007US 7,220,857 B2FUJIFILM Corporation
- Diaminoazothiophene compound and a method for preparing the same19 Oct 1993US 5,254,674 AOsaka Gas Co., Ltd.
- Preparation of stable solutions of azo dyes of m-phenylenediamine by reaction with formic acid28 Aug 1990US 4,952,680 ABASF SE
- Dark-colored and infrared-reflective fiber without metal composition, manufacturing method thereof, and textile25 Feb 2021US 2021/0054533 A1Nan Ya Plastics Corporation
- Method For Producing A Liquid Formulation Of Salts Of Sulphonic-Acid Azo Dyes4 Oct 2007US 2007/0232795 A1BASF SE
- Method for producing liquid adjustments of basic azo dyes13 Sep 2007US 2007/0213514 A1BASF SE
- Novel azo dye compound29 Jun 2006US 2006/0142553 A1Fuji Photo Film Co., Ltd.
- Method for producing a liquid formulation of salts of sulfonated azo dyes9 Mar 2006US 2006/0052590 A1BASF SE
Most cited
By later US patents
- Preparation of stable solutions of azo dyes of m-phenylenediamine by reaction with formic acid54US 4,952,680 ABASF SE · 1990
- Neutron and/or gamma radiation detecting system31US 4,829,185 AKernforschungszentrum Karlsruhe GmbH · 1989
- Process for the preparation of solutions of cationic polyazo dyestuffs5US 4,400,321 ABayer Aktiengesellschaft · 1983
- Preparation of aromatic azoamines by diazotization/coupling/rearrangement of aromatic amines1US 4,275,003 ARhone-Poulenc Industries · 1981
- Method for producing a liquid formulation of salts of sulfoacidic azo dyes1US 7,488,810 B2BASF SE · 2009