C09B 35/205
The tetrazo component being a derivative of a diaryl- or triaryl- alkane
Official title: the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene
C09B35/205 (The tetrazo component being a derivative of a diaryl- or triaryl- alkane) appears on 51 US grants and 8 published applications in this corpus.
Search patents in C09B- Granted patents
- 51
- Published applications
- 8
- Assignees
- 25
- Inventors
- 84
- Latest grant
- 22 Nov 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Water soluble and water fast dyes for ink jet printing22 Nov 2016US 9,499,707 B2Rex-Tone Industries Ltd
- Basic bisazo compounds30 Dec 2014US 8,921,564 B2Clariant Finance (BVI) Limited
- Disazo acid dyes22 Jan 2013US 8,357,210 B2Clariant Finance (BVI) Limited
- Lyotropic liquid crystalline mixture, coating liquid, and optical anisotropic film14 Dec 2010US 7,850,868 B2Nitto Denko Corporation
- Multi-chromophoric AZO pyridone colorants13 Jul 2010US 7,754,862 B2Xerox Corporation
- Water Soluble and Water Fast Dyes for Ink Jet Printing19 Feb 2015US 2015/0050466 A1Ilford Imaging Switzerland GmbH
- Disazo Acid Dyes25 Aug 2011US 2011/0203058 A1Clariant Finance (BVI) Limited
- Lyotropic liquid crystalline mixture, coating liquid, and optical anisotropic film18 Feb 2010US 2010/0038589 A1Nitto Denko Corporation
- Basic Bisazo Compounds7 Jan 2010US 2010/0000033 A1Clariant Finance (BVI) Limited
- Disazo Acid Dyes21 May 2009US 2009/0126128 A1Clariant Finance (BVI) Limited
Most cited
By later US patents
- Stilbene dyestuffs and light-polarizing films or sheets containing stilbene39US 5,272,259 ABayer Aktiengesellschaft · 1993
- Light-polarizing films or sheets containing stilbene dyestuffs35US 5,007,942 ABayer Aktiengesellschaft · 1991
- Optically clear silicone compositions26US 5,077,335 ABayer Aktiengesellschaft · 1991
- Electrophotographic material containing disazo compounds23US 4,272,598 ARicoh Company, Ltd. · 1981
- Cationic azo dyes based on aminobenzoic acid21US 6,048,968 ABASF SE · 2000