C09B 35/04
The tetrazo component being a benzene derivative
Official title: the tetrazo component being a benzene derivative
C09B35/04 (The tetrazo component being a benzene derivative) appears on 21 US grants and 4 published applications in this corpus.
Search patents in C09B- Granted patents
- 21
- Published applications
- 4
- Assignees
- 15
- Inventors
- 45
- Latest grant
- 25 May 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 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 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Unitary laundry detergent article25 May 2021US 11,015,153 B2The Procter & Gamble Company
- Azo dyes27 May 2014US 8,734,534 B2Kemira Oyj
- Acid dyes20 Mar 2012US 8,137,416 B2Clariant Finance (BVI) Limited
- Acid dyes19 Apr 2011US 7,927,384 B2Clariant Finance (BVI) Limited
- Disazo dyestuffs29 Feb 2000US 6,031,083 ABayer Aktiengesellschaft
Most cited
By later US patents
- Dichroic azo dyes59US 5,589,100 AHercules Incorporated · 1996
- Neutron and/or gamma radiation detecting system31US 4,829,185 AKernforschungszentrum Karlsruhe GmbH · 1989
- Novel yellow azo dyes and dichroic liquid crystal composition made therewith15US 4,308,164 AGeneral Electric Company · 1981
- Colorant and ink compositions12US 5,413,630 AXerox Corporation · 1995
- Naphtholazophenylazoaminonaphthol compounds and copper complexes thereof10US 4,988,805 ABayer Aktiengesellschaft · 1991