C09B 43/006
Preparation of azo dyes from other azo compounds: by introduction of hydrocarbon
Official title: {by introduction of hydrocarbon radicals on C-atom of azo dye}
C09B43/006 (Preparation of azo dyes from other azo compounds: by introduction of hydrocarbon) appears on 8 US grants and 3 published applications in this corpus.
Search patents in C09B- Granted patents
- 8
- Published applications
- 3
- Assignees
- 9
- Inventors
- 21
- Latest grant
- 1 Dec 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 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 | 1 | 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 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- AZO compound and ink containing the compound1 Dec 2015US 9,200,171 B2Mitsubishi Chemical Corporation
- Process for preparing self-dispersible coloring agent using lewis acids and ink composition comprising the coloring agent1 Jul 2008US 7,393,403 B2Samsung Eletronics Co., Ltd.
- Dichroic dye, composition thereof, and liquid crystal composition and liquid crystal display element containing the same1 Mar 2005US 6,861,106 B2Industrial Technology Research Institute
- Azo compound and liquid crystal composition containing the same14 Apr 1992US 5,104,572 AMitsubishi Kasei Corporation
- Polyaminomethylated monoazo and disazo colorants6 Mar 1979US 4,143,034 ASterling Drug Inc.
- Azo compound and ink containing the compound20 Mar 2014US 2014/0078577 A1Mitsubishi Chemical Corporation
- Process for preparing self-dispersible coloring agent using lewis acids and ink composition comprising the coloring agent31 Mar 2005US 2005/0066856 A1Samsung Electronics Co., Ltd.
- Dichroic dye, composition thereof, and liquid crystal composition and liquid crystal display element containing the same15 Jul 2004US 2004/0135117 A1Industrial Technology Research Institute
Most cited
By later US patents
- Process for preparing self-dispersible coloring agent using lewis acids and ink composition comprising the coloring agent15US 7,393,403 B2Samsung Eletronics Co., Ltd. · 2008
- Polyester fibers dyed with a disazo disperse dyestuff10US 3,954,398 ACiba-Geigy Corporation · 1976
- Polyaminomethylated monoazo and disazo colorants8US 4,143,034 ASterling Drug Inc. · 1979
- Azo compound and liquid crystal composition containing the same6US 5,104,572 AMitsubishi Kasei Corporation · 1992
- Monoazo hydroxy pyridone dyestuffs containing a methylene piperidino group2US 3,956,265 AImperial Chemical Industries PLC · 1976