C09B 33/22
Trisazo dyes of the type a->b->k<-c
Official title: Trisazo dyes of the type A->B->K<-C
C09B33/22 (Trisazo dyes of the type a->b->k<-c) appears on 27 US grants and 23 published applications in this corpus.
Search patents in C09B- Granted patents
- 27
- Published applications
- 23
- Assignees
- 25
- Inventors
- 66
- Latest grant
- 16 Apr 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 3 |
| 2005 | 0 | 0 |
| 2006 | 2 | 3 |
| 2007 | 3 | 3 |
| 2008 | 2 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Black trisazo dyes, their preparation and their use16 Apr 2019US 10,259,942 B2DFI Chem GmbH
- Polarizing film, display device and production process thereof14 Aug 2018US 10,047,294 B2FUJIFILM Corporation
- Water soluble and water fast dyes for ink jet printing22 Nov 2016US 9,499,707 B2Rex-Tone Industries Ltd
- Polarizing film, display device and production process thereof5 Jul 2016US 9,382,481 B2FUJIFILM Corporation
- Ink composition, ink for inkjet recording and inkjet recording method16 Sep 2014US 8,834,619 B2FUJIFILM Corporation
- Trisazo Compounds for Ink-jet Printing28 Jul 2022US 2022/0235000 A1LANXESS Deutschland GmbH
- Black Trisazo Dyes, Their Preparation And Their Use23 Nov 2017US 2017/0335110 A1DFI Chem GmbH
- Polarizing film, display device and production process thereof29 Sep 2016US 2016/0280999 A1FUJIFILM Corporation
- Water Soluble and Water Fast Dyes for Ink Jet Printing19 Feb 2015US 2015/0050466 A1Ilford Imaging Switzerland GmbH
- Ink composition, ink for inkjet recording and inkjet recording method16 Jan 2014US 2014/0013997 A1FUJIFILM Corporation
Most cited
By later US patents
- Ink, and recording method making use of same30US 5,216,437 ACanon Kabushiki Kaisha · 1993
- Ink, and recording method making use of same26US 5,139,573 ACanon Kabushiki Kaisha · 1992
- Polyazo compound or salt thereof and dye-based polarization film containing the same17US 6,399,752 B1Sumitomo Chemical Company, Limited · 2002
- Azo compound and salt thereof12US 7,304,147 B2Nippon Kayaku Kabushiki Kaisha · 2007
- Printing process using specified AZO compounds10US 7,056,376 B2Avecia Limited · 2006