C09B 5/26
Carbazoles of the anthracene series
C09B5/26 (Carbazoles of the anthracene series) appears on 11 US grants and 2 published applications in this corpus.
Search patents in C09B- Granted patents
- 11
- Published applications
- 2
- Assignees
- 8
- Inventors
- 44
- Latest grant
- 5 Feb 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Colorants based N-halamines compositions and method of making and using5 Feb 2013US 8,367,823 B2Board of Regents, The University of Texas System
- Dichroic light polarizers11 Apr 2000US 6,049,428 AOptiva, Inc.
- Carbazole derivatives and their use in cosmetics6 Aug 1996US 5,543,436 AL'oreal
- Vat dye based on flouranthene15 May 1990US 4,925,954 ABASF SE
- Anthrimidecarbazole compound having thenoylamino groups20 Sep 1988US 4,772,725 ACiba-Geigy Corporation
Most cited
By later US patents
- Dichroic light polarizers162US 6,049,428 AOptiva, Inc. · 2000
- Colorants based N-halamines compositions and method of making and using5US 8,367,823 B2Board of Regents, The University of Texas System · 2013
- Carbazole derivatives and their use in cosmetics2US 5,543,436 AL'oreal · 1996
- Anthraquinone vat dyestuffs1US 4,153,608 ABayer Aktiengesellschaft · 1979
- Vat dyestuff prepared from crude anthraquinone mixtures1US 4,405,785 AToms River Chemical Corporation · 1983