C09B 62/527
Azo dyes
C09B62/527 (Azo dyes) appears on 6 US grants and 1 published applications in this corpus.
Search patents in C09B- Granted patents
- 6
- Published applications
- 1
- Assignees
- 5
- Inventors
- 14
- Latest grant
- 21 Aug 1984
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 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 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- s-Triazines21 Aug 1984US 4,467,088 ACiba-Geigy Corporation
- Water soluble monoazo dyes for nylon18 May 1982US 4,330,468 AImperial Chemical Industries PLC
- Disazo dyestuff sulphuric acid ester27 Jan 1981US 4,247,460 ABayer Aktiengesellschaft
- Acid disazo dyestuffs containing a substituted thiophene middle component25 Dec 1979US 4,180,503 ABayer Aktiengesellschaft
- Sulfonamidobenzene-azo-aminopyrazole dyestuffs25 Oct 1977US 4,055,557 ABayer Aktiengesellschaft
Most cited
By later US patents
- Acid disazo dyestuffs containing a substituted thiophene middle component11US 4,180,503 ABayer Aktiengesellschaft · 1979
- Water soluble monoazo dyes for nylon5US 4,330,468 AImperial Chemical Industries PLC · 1982
- Aminosulfonylphenyl-azo-indolyl dyestuffs4US 4,000,123 ABayer Aktiengesellschaft · 1976
- Disazo dyestuff sulphuric acid ester3US 4,247,460 ABayer Aktiengesellschaft · 1981
- Sulfonamidobenzene-azo-aminopyrazole dyestuffs1US 4,055,557 ABayer Aktiengesellschaft · 1977