C09B 43/42
By substituting radicals containing hetero atoms for —cn radicals
Official title: by substituting radicals containing hetero atoms for —CN radicals
C09B43/42 (By substituting radicals containing hetero atoms for —cn radicals) appears on 48 US grants and 11 published applications in this corpus.
Search patents in C09B- Granted patents
- 48
- Published applications
- 11
- Assignees
- 21
- Inventors
- 67
- Latest grant
- 17 Jul 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 3 | 3 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Disperse azo dyes, a process for the preparation thereof and the use thereof17 Jul 2018US 10,023,742 B2Huntsman International LLC
- Disperse azo dyes, a process for the preparation thereof and the use thereof28 Jun 2016US 9,376,570 B2Huntsman International LLC
- Azo compounds27 Nov 2007US 7,301,013 B2Clariant Finance (BVI) Limited
- Azo compounds24 Oct 2006US 7,125,966 B2Clariant Finance (BVI) Limited
- Azo dyes5 Sep 2006US 7,101,983 B2Clariant Finance (BVI) Limited
- Disperse Azo Dyes, A Process for the Preparation Thereof and the Use Thereof1 Sep 2016US 2016/0251517 A1Huntsman International LLC
- Disperse Azo Dyes, A Process for the Preparation Thereof and the Use Thereof16 Jul 2015US 2015/0197637 A1Huntsman International LLC
- Phthalimidyl-Azo Dyes, Process for Their Preparation and Their Use17 Jul 2014US 2014/0196224 A1Huntsman International LLC
- Phthalimidyl-azo dyes, process for their preparation and their use7 Apr 2011US 2011/0078863 A1Huntsman International LLC
- Disperse azo dyes and mixtures comprising these disperse azo dyes14 May 2009US 2009/0123711 A1
Most cited
By later US patents
- Process for preparing azo dyestuffs with ortho-azo cyano groups by cyano exchange of metal cyanides and halo dyestuffs19US 3,962,209 ABayer Aktiengesellschaft · 1976
- Phenyl-azo-anilino dyestuff13US 4,105,655 ABayer Aktiengesellschaft · 1978
- Phenylazo orthocyano phenylazo or orthocyano phenylazo phenylazo containing dyestuffs11US 4,083,844 ABayer Aktiengesellschaft · 1978
- Unsymmetrical aliphatic monoazo compounds9US 3,931,143 APennwalt Corporation · 1976
- Process for the preparation of cyanoazo compounds by reacting halogenoazo compounds with CuCN in an aqueous media in the presence of a nitrogen base9US 3,978,040 ABayer Aktiengesellschaft · 1976