C09B 35/26
The tetrazo component being a derivative of a diaryl urea
Official title: the tetrazo component being a derivative of a diaryl urea
C09B35/26 (The tetrazo component being a derivative of a diaryl urea) appears on 6 US grants and 1 published applications in this corpus.
Search patents in C09B- Granted patents
- 6
- Published applications
- 1
- Assignees
- 5
- Inventors
- 9
- Latest grant
- 2 Aug 2005
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 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 | 1 |
| 2005 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Ink, ink-jet-recording method and bis-azo compound2 Aug 2005US 6,923,855 B2Fuji Photo Film Co., Ltd.
- Basic azo dyestuffs of the 3-cyano-2,4,6-triamino pyridine series21 Nov 1995US 5,468,848 ABayer Aktiengesellschaft
- Stable concentrated liquid preparation of paper dyes of the disazo class4 Jul 1978US 4,098,569 ACiba-Geigy Corporation
- Stable concentrated liquid preparation of a paper dye of the disazo class21 Feb 1978US 4,074,966 ACiba-Geigy Corporation
- Disazo compounds useful as complement inhibitors13 Dec 1977US 4,062,837 AAmerican Cyanamid Company
Most cited
By later US patents
- Ink, ink-jet-recording method and bis-azo compound11US 6,923,855 B2Fuji Photo Film Co., Ltd. · 2005
- Basic azo dyestuffs of the 3-cyano-2,4,6-triamino pyridine series4US 5,468,848 ABayer Aktiengesellschaft · 1995
- Substituted bisnaphthylazo diphenyl ureido complement inhibitors2US 4,049,640 AAmerican Cyanamid Company · 1977
- Stable concentrated liquid preparation of paper dyes of the disazo class2US 4,098,569 ACiba-Geigy Corporation · 1978
- Stable concentrated liquid preparation of a paper dye of the disazo class1US 4,074,966 ACiba-Geigy Corporation · 1978