C09B 35/35
Trisazo dyes in which the tetrazo component is a diamino-azo-aryl compound
C09B35/35 (Trisazo dyes in which the tetrazo component is a diamino-azo-aryl compound) appears on 34 US grants and 4 published applications in this corpus.
Search patents in C09B- Granted patents
- 34
- Published applications
- 4
- Assignees
- 18
- Inventors
- 55
- Latest grant
- 22 Oct 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Black ink-jet inks with reduced lightness and haze22 Oct 2013US 8,562,121 B2Hewlett-Packard Development Company, L. P.
- AZO pigment, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus13 Nov 2012US 8,309,696 B2Canon Kabushiki Kaisha
- Disazo dyes, and copper complexes thereof, for dyeing paper18 Jul 2006US 7,078,497 B2Ciba Specialty Chemicals Corporation
- Bisazo compounds and process for the preparation thereof12 Oct 1999US 5,965,715 AKabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
- Electrophotographic photosensitive member, and electrophotographic apparatus, device unit and facsimile machine having the photosensitive member2 May 1995US 5,411,828 ACanon Kabushiki Kaisha
- Black Ink-jet Inks With Reduced Lightness And Haze24 Feb 2011US 2011/0043577 A1Hewlett-Packard Development Company, L. P.
- Azo pigment, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus25 Mar 2010US 2010/0075239 A1Canon Kabushiki Kaisha
- Disazo dyes, and copper complexes thereof, for dyeing paper12 Oct 2006US 2006/0229440 A1
- Disazo dyes, and copper complexes thereof, for dyeing paper1 Apr 2004US 2004/0063920 A1Ciba Specialty Chemicals Corporation
Most cited
By later US patents
- Electrophotographic photoreceptor comprising azo compounds51US 4,618,555 AMitsubishi Chemical Ind., Ltd. · 1986
- Dual layer electrophotographic recording material25US 3,977,870 AHoechst Aktiengesellschaft · 1976
- Process for dyeing paper with disazo dyes19US 5,288,294 ACiba-Geigy Corporation · 1994
- Liquid crystal compositions with novel tris-azo dichroic dyes18US 4,359,398 AGeneral Electric Company · 1982
- Novel yellow azo dyes and dichroic liquid crystal compositions made therewith15US 4,308,161 AGeneral Electric Company · 1981