C09B 35/467
D being derived from diaminodiaryl linked through con<, so2n<, csn<
Official title: {D being derived from diaminodiaryl linked through CON<, SO2N<, CSN<}
C09B35/467 (D being derived from diaminodiaryl linked through con<, so2n<, csn<) appears on 6 US grants and 1 published applications in this corpus.
Search patents in C09B- Granted patents
- 6
- Published applications
- 1
- Assignees
- 6
- Inventors
- 20
- Latest grant
- 19 Jan 1993
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 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 | 0 |
| 2007 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Trisazo compounds and use thereof19 Jan 1993US 5,180,817 ASumitomo Chemical Company, Limited
- Aqueous ink composition27 Dec 1988US 4,793,860 ARicoh Company, Ltd.
- Novel heterocycle-containing trisazo dyes15 Nov 1988US 4,784,668 ABASF SE
- Trisazo dye30 Oct 1984US 4,479,906 ABASF SE
- Hydrosoluble pyrazolone trisazo dyestuffs derived from 4,4'-diamino-benzenesulfanilide3 Aug 1982US 4,342,684 AP C U K Produits Chimiques Ugine Kuhlmann
Most cited
By later US patents
- Aqueous ink composition49US 4,793,860 ARicoh Company, Ltd. · 1988
- Trisazo dye11US 4,479,906 ABASF SE · 1984
- Novel heterocycle-containing trisazo dyes7US 4,784,668 ABASF SE · 1988
- Trisazo dyestuffs containing a naphtholamino sulfonic acid component and a phenylcarbonylamino-phenyl component4US 4,235,773 ABayer Aktiengesellschaft · 1980
- Trisazo compounds and use thereof3US 5,180,817 ASumitomo Chemical Company, Limited · 1993