C09B 62/036
Porphines
Official title: Porphines; Azaporphines
C09B62/036 (Porphines) appears on 5 US grants and 0 published applications in this corpus.
Search patents in C09B- Granted patents
- 5
- Published applications
- 0
- Assignees
- 4
- Inventors
- 11
- Latest grant
- 8 Dec 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 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 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Aluminum phthalocyanine reactive dyes8 Dec 1998US 5,847,111 AClariant Finance (BVI) Limited
- Aluminum phthalocyanine reactive dyes14 Jul 1998US 5,780,621 ABayer Aktiengesellschaft
- Anionic phthalocyanine compounds23 Feb 1993US 5,189,154 AImperial Chemical Industries PLC
- Reactive dyes, processes for their manufacture and their use18 May 1982US 4,330,469 ACiba-Geigy Corporation
- Process for the preparation of phthalocyanine reactive dyestuffs20 Jan 1981US 4,246,174 ABayer Aktiengesellschaft
No published applications in this class yet.
Most cited
By later US patents
- Reactive dyes, processes for their manufacture and their use11US 4,330,469 ACiba-Geigy Corporation · 1982
- Process for the preparation of phthalocyanine reactive dyestuffs7US 4,246,174 ABayer Aktiengesellschaft · 1981
- Aluminum phthalocyanine reactive dyes7US 5,847,111 AClariant Finance (BVI) Limited · 1998
- Aluminum phthalocyanine reactive dyes4US 5,780,621 ABayer Aktiengesellschaft · 1998
- Anionic phthalocyanine compounds2US 5,189,154 AImperial Chemical Industries PLC · 1993