C09B 29/3686
Containing nitrogen and oxygen as heteroatom
Official title: {containing nitrogen and oxygen as heteroatom}
C09B29/3686 (Containing nitrogen and oxygen as heteroatom) appears on 30 US grants and 3 published applications in this corpus.
Search patents in C09B- Granted patents
- 30
- Published applications
- 3
- Assignees
- 9
- Inventors
- 32
- Latest grant
- 31 Jul 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 10 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of coloring hair with washfast blue imidazolium direct dye compounds31 Jul 2018US 10,034,823 B2Noxell Corporation
- Disperse dyes, their preparation and their use14 Feb 2017US 9,567,464 B2DyStar Colours Distribution GmbH
- Inkjet recording ink and method of inkjet recording25 Dec 2007US 7,311,393 B2FUJIFILM Corporation
- Azo dyes containing 5-cyclohexylcarbonyl-thiophene diazo components and 1,2,3,4-tetrahydroquinoline coupling components7 May 1991US 5,013,826 ACiba-Giegy Corporation
- Azo compounds having a 2,4-dinitro-5-thiocyanophenyl diazo component radical28 Oct 1986US 4,619,993 ASandoz Ltd.
- Method of Coloring Hair with Washfast Blue Imidazolium Direct Dye Compounds22 Mar 2018US 2018/0078478 A1Noxell Corporation
- Disperse dyes, their preparation and their use29 Sep 2016US 2016/0280922 A1DyStar Colours Distribution GmbH
- Inkjet recording ink and method of inkjet recording16 Mar 2006US 2006/0055750 A1FUJIFILM Corporation
Most cited
By later US patents
- 2-Thienyl azo dyestuff compounds34US 4,264,495 AEastman Kodak Company · 1981
- Nitrogen and/or sulfur containing heterocyclic azo dyes with aniline, tetrahydroquinoline and benzomorpholine couplers having sulfate group22US 4,255,326 AEastman Kodak Company · 1981
- Azo dyes derived from 5-membered heterocyclic amines and aromatic amine couplers containing sulfo groups, or salts thereof20US 4,282,144 AEastman Kodak Company · 1981
- Substituted 5-acyl-3-carbamoyl-2-thienyl azo dyes with aniline, tetrahydroquinoline, and benzomorpholine couplers, process of manufacture, and polyamide testile materials dyed therewith13US 4,400,318 AEastman Kodak Company · 1983
- 2-amino-cinnamoylthiophene azo dyes having aniline, tetrahydroquinoline, or benzomorpholine couplers10US 4,593,088 AEastman Kodak Company · 1986