C09B 62/475
Disazo or polyazo dyes
C09B62/475 (Disazo or polyazo dyes) appears on 10 US grants and 4 published applications in this corpus.
Search patents in C09B- Granted patents
- 10
- Published applications
- 4
- Assignees
- 8
- Inventors
- 28
- Latest grant
- 23 Feb 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Coloring composition, light absorption anisotropic film, laminate, and image display device23 Feb 2021US 10,927,260 B2FUJIFILM Corporation
- Particles for electrophoretic displays8 Nov 2016US 9,487,611 B2Merck Patent GmbH
- Fibre-reactive dyes, their preparation and their use11 Aug 2009US 7,572,301 B2Huntsman International LLC
- Trisazo reactive dyestuff compound24 Jun 2008US 7,390,889 B1Everlight USA, Inc.
- Reactive colorants, mixtures of reactive colorants and production and use thereof25 Mar 2003US 6,537,332 B1Ciba Speciality Chemicals Corporation
- Coloring composition, light absorption anisotropic film, laminate, and image display device20 Dec 2018US 2018/0362768 A1FUJIFILM Corporation
- Fibre-Reactive Dyes, Their Preparation and Their Use30 Jan 2014US 2014/0026333 A1
- Particles for electrophoretic displays15 Aug 2013US 2013/0208344 A1Merck Patent GmbH
- Fibre-Reactive Dyes, Their Preparation And Their Use16 Oct 2008US 2008/0250575 A1Huntsman International LLC
Most cited
By later US patents
- Mixtures of reactive dyes and their use18US 5,849,887 ACiba Specialty Chemicals Corporation · 1998
- Reactive colorants, mixtures of reactive colorants and production and use thereof10US 6,537,332 B1Ciba Speciality Chemicals Corporation · 2003
- Process for dyeing or printing of fibre material from natural or synthetic polyamides with reactive disazo dyes7US 4,917,705 ACiba-Geigy Corporation · 1990
- 2,7-diphenylazo-1-amino-8-hydroxynaphthalene disazo dyes containing two fiber-reactive groups4US 4,990,599 ACiba-Geigy Corporation · 1991
- Dyes, processes for their preparation and their use3US 5,931,975 ACiba Specialty Chemicals Corporation · 1999