C09B 62/024
Anthracene dyes
C09B62/024 (Anthracene dyes) appears on 7 US grants and 0 published applications in this corpus.
Search patents in C09B- Granted patents
- 7
- Published applications
- 0
- Assignees
- 4
- Inventors
- 12
- Latest grant
- 30 Nov 1993
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 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 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- 1-aminoanthraquinone dye compound having fiber reactive group through sulfur or oxygen atom at 4-position and imparting red color30 Nov 1993US 5,266,696 ASumitomo Chemical Company, Limited
- Anthraquinone dye compounds having fibers reactive group12 May 1992US 5,112,971 ASumitomo Chemical Company, Limited
- Anthraquinone derivatives25 Jul 1989US 4,851,528 AImperial Chemical Industries PLC
- Anthraquinone reactive dyes2 Dec 1980US 4,237,284 ASandoz Ltd.
- 1,4-Diaminoanthraquinone derivatives containing a haloquinoxaline-6-carbonyl group17 Apr 1979US 4,150,230 ASandoz Ltd.
No published applications in this class yet.
Most cited
By later US patents
- 1,4-Diaminoanthraquinones3US 4,101,547 ASandoz Ltd. · 1978
- Anthraquinone derivatives3US 4,851,528 AImperial Chemical Industries PLC · 1989
- Anthraquinone dye compounds having fibers reactive group3US 5,112,971 ASumitomo Chemical Company, Limited · 1992
- Anthraquinone compounds2US 4,138,558 ANippon Kayaku Kabushiki Kaisha · 1979
- 1,4-Diaminoanthraquinone derivatives containing a haloquinoxaline-6-carbonyl group1US 4,150,230 ASandoz Ltd. · 1979