C09B 62/40
Azo dyes
C09B62/40 (Azo dyes) appears on 7 US grants and 3 published applications in this corpus.
Search patents in C09B- Granted patents
- 7
- Published applications
- 3
- Assignees
- 3
- Inventors
- 17
- Latest grant
- 7 Nov 2006
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 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 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Fiber-reactive AZO dyes, preparation thereof and use thereof7 Nov 2006US 7,132,515 B2DyStar Textilfarben GmbH & Co. Deutschland KG
- Water-soluble reactive mono- and di-azo dyes19 Sep 2006US 7,109,313 B2DyStar Textilfarben GmbH & Co. Deutschland KG
- Water-soluble monoazo compounds, preparation thereof and use thereof as dyes5 Sep 2000US 6,114,511 ADyStar Textilfarben GmbH & Co.
- Reactive disazo dyestuffs which contain two heterocyclic reactive groups29 Oct 1996US 5,569,747 ABayer Aktiengesellschaft
- Reactive azo dyestuffs obtained by coupling diazotized acylamino-aminobenzene sulfonic acid compounds with pyridone derivatives18 May 1993US 5,212,289 ABayer Aktiengesellschaft
- Reactive Polyazo Dyes28 Feb 2008US 2008/0047079 A1DyStar Textilfarben GmbH & Co. Deutschland KG
- Fiber-reactive azo dyes, preparation thereof and use thereof14 Jul 2005US 2005/0150063 A1DyStar Textilfarben GmbH & Co. Deutschland KG
- Water-soluble reactive mono- and di-azo dyes7 Jul 2005US 2005/0148764 A1DyStar Textilfarben GmbH & Co. Deutschland KG
Most cited
By later US patents
- Liquid crystal phase of an azo reactive dyestuff and its use for dyeing and printing natural and synthetic substrates6US 4,309,182 ABayer Aktiengesellschaft · 1982
- Liquid crystal phase of an azo reactive dyestuff and its use for dyeing and printing natural and synthetic substrates6US 4,309,183 ABayer Aktiengesellschaft · 1982
- Reactive disazo dyestuffs which contain two heterocyclic reactive groups4US 5,569,747 ABayer Aktiengesellschaft · 1996
- Water-soluble monoazo compounds, preparation thereof and use thereof as dyes4US 6,114,511 ADyStar Textilfarben GmbH & Co. · 2000
- Water-soluble reactive mono- and di-azo dyes1US 7,109,313 B2DyStar Textilfarben GmbH & Co. Deutschland KG · 2006