C09B 56/06
Bis- or polystilbene azo dyes
C09B56/06 (Bis- or polystilbene azo dyes) appears on 13 US grants and 4 published applications in this corpus.
Search patents in C09B- Granted patents
- 13
- Published applications
- 4
- Assignees
- 7
- Inventors
- 32
- Latest grant
- 14 Aug 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Polarizing film, display device and production process thereof14 Aug 2018US 10,047,294 B2FUJIFILM Corporation
- Polarizing film, display device and production process thereof5 Jul 2016US 9,382,481 B2FUJIFILM Corporation
- Method of preparing complex-AZO pigment and complex-AZO pigment thereof26 Jun 2012US 8,207,312 B2Ricoh Company, Ltd.
- Thermal transfer imaging element containing infrared bichromophoric colorant11 Jan 2005US 6,841,514 B2Eastman Kodak Company
- Process for dyeing or printing hydroxyl group containing fiber materials6 Aug 1996US 5,542,956 ACiba-Geigy Corporation
- Polarizing film, display device and production process thereof29 Sep 2016US 2016/0280999 A1FUJIFILM Corporation
- Polarizing film, display device and production process thereof21 Mar 2013US 2013/0070899 A1FUJIFILM Corporation
- Method of preparing complex-azo pigment and complex-azo pigment thereof14 Jan 2010US 2010/0010204 A1Ricoh Company, Ltd.
- Thermal transfer imaging element containing infrared bichromophoric colorant1 Jul 2004US 2004/0127359 A1Eastman Kodak Company
Most cited
By later US patents
- Electrophotographic material containing disazo compounds23US 4,272,598 ARicoh Company, Ltd. · 1981
- Electrophotographic photosensitive member with disazo or trisazo compound22US 4,427,753 ACanon Kabushiki Kaisha · 1984
- Electrophotographic sensitive element having a photoconductive disazo pigment19US 4,260,672 ARicoh Company, Ltd. · 1981
- Mixtures of a 1:1 copper or nickel complex of a stilbene-azo or stilbene-azoxy compound having two 4,4'-(2,2'-disulfostilbenylene) radicals and a 1:1 copper or nickel complex of a stilbene-azo or stilbene-azoxy compound having one such radical11US 4,954,133 ASandoz Ltd. · 1990
- Layered electrophotographic photoconductor9US 4,284,698 ARicoh Company, Ltd. · 1981