C09B 62/4407
Formazane dyes
Official title: {Formazane dyes}
C09B62/4407 (Formazane dyes) appears on 14 US grants and 2 published applications in this corpus.
Search patents in C09B- Granted patents
- 14
- Published applications
- 2
- Assignees
- 8
- Inventors
- 26
- Latest grant
- 24 Nov 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Fibre-reactive dyes, their preparation and their use24 Nov 2015US 9,193,870 B2Huntsman International LLC
- Mixtures of reactive dyes and their use in a method for trichromatic dyeing or printing27 Dec 2011US 8,083,811 B2Huntsman International LLC
- Reactive formazan dyestuffs18 Jun 2002US 6,407,220 B1Everlight USA, Inc.
- Reactive dyes, their preparation and use10 Aug 1999US 5,936,072 ACiba Specialty Chemicals Corporation
- Reactive formazan dyestuffs10 Aug 1999US 5,936,073 AEverlight USA, Inc.
Most cited
By later US patents
- Metallized formazan compounds having two fiber reactive groups linked by n-alkyl-containing group10US 4,935,500 ASumitomo Chemical Company, Limited · 1990
- Formazan blue reactive dye8US 4,720,542 ASumitomo Chemical Company, Limited · 1988
- Copper complex formazan compounds containing a phenylaminotriazinylamino group with a fiber-reactive group of the vinylsulfone series and an alkyl amino substituent in the phenyl moiety suitable as fiber-reactive dyestuffs5US 4,906,736 AHoechst Aktiengesellschaft · 1990
- Copper complex formazan compounds containing a cyanamido-S-triazinylamino radical and a fiber-reactive group of the vinylsulfone series, suitable as dyes5US 5,015,731 AHoechst Aktiengesellschaft · 1991
- Fibre-reactive formazane dyes containing .beta.-sulfatoethylsulfonyl bonded via phenylaminotriazinylamino bridge members4US 5,076,811 ACiba-Geigy Corporation · 1991