C09B 62/5036
Formazane dyes
Official title: {Formazane dyes}
C09B62/5036 (Formazane dyes) appears on 17 US grants and 2 published applications in this corpus.
Search patents in C09B- Granted patents
- 17
- Published applications
- 2
- Assignees
- 9
- Inventors
- 32
- Latest grant
- 4 Feb 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 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 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Fibre reactive formazan dyes, their preparation and their use4 Feb 2020US 10,550,268 B2Huntsman International LLC
- Fiber reactive formazan dyes containing a vinyl sulfonyl reactive group8 Oct 1996US 5,563,248 AHoechst Celanese Corporation
- Formazan-based reactive dyes with at least two reactive groups, and aminophenols30 Jan 1996US 5,488,100 ABASF SE
- Aminophenols useful as intermediates for formazan reactive dyes30 Jan 1996US 5,488,127 ABASF SE
- Dye compositions for polyamides10 Oct 1995US 5,456,727 AHoechst Celanese Corporation
Most cited
By later US patents
- Copper complex formazan compounds, process for their manufacture and their use as dyestuffs7US 4,336,190 AHoechst Aktiengesellschaft · 1982
- Copper formazan compounds, processes for their preparation and their use as dyestuffs7US 4,370,145 AHoechst Aktiengesellschaft · 1983
- Fibre-reactive formazan dyes containing .beta.-halogenethyl or vinylsulfonyl-alkanoylamino fiber-reactive groups7US 5,023,274 ACiba-Geigy Corporation · 1991
- Bicyclic copper complex formazan compounds having a fiber-reactive group of the vinyl sulfone series, containing a fiber-reactive group suitable as dyestuffs6US 4,607,098 AHoechst Aktiengesellschaft · 1986
- 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