C09B 44/06
From coupling components containing hydroxyl as the only directing group
Official title: from coupling components containing hydroxyl as the only directing group
C09B44/06 (From coupling components containing hydroxyl as the only directing group) appears on 10 US grants and 2 published applications in this corpus.
Search patents in C09B- Granted patents
- 10
- Published applications
- 2
- Assignees
- 4
- Inventors
- 25
- Latest grant
- 14 Apr 2009
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 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 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cationic naphthyldiazo dyes and keratin fibers-coloring agents containing these dyes14 Apr 2009US 7,517,367 B2Wella Aktiengesellschaft
- Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid23 Aug 2005US 6,933,371 B2BASF SE
- Preparation of liquid formulations of basic azo dyes1 Jun 2004US 6,743,901 B1BASF SE
- Cationic 1,3,4-thiadiazole dyestuffs25 Jul 1995US 5,436,323 ABayer Aktiengesellschaft
- Basic azo dyes with a coupling component of the hydroxynaphthalenecarboxylic acid series15 Feb 1994US 5,286,854 ABASF SE
Most cited
By later US patents
- Basic disazo dyes having two 2-hydroxy-3-substituted carbamoylnaphthyl-1-azophenyl groups for dyeing paper8US 4,046,502 ASandoz Ltd. · 1977
- Benzoazoresorcinol dyes containing a quaternized aminoalkylene oxycarbonyl group8US 4,656,256 ABASF SE · 1987
- Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid6US 6,933,371 B2BASF SE · 2005
- Naphtholazo benzoylalkylene amines and salts thereof as dyes for acid-modified fibers, leather and paper5US 4,652,632 ABASF SE · 1987
- Cationic 1,3,4-thiadiazole dyestuffs5US 5,436,323 ABayer Aktiengesellschaft · 1995