C09B 62/26
Porphyrins
Official title: Porphyrins; Porphyrazins {(C09B62/242 takes precedence)}
C09B62/26 (Porphyrins) appears on 5 US grants and 0 published applications in this corpus.
Search patents in C09B- Granted patents
- 5
- Published applications
- 0
- Assignees
- 3
- Inventors
- 10
- Latest grant
- 20 Jan 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Phthalocyanine reactive dyestuff mixture20 Jan 1998US 5,709,717 ABayer Aktiengesellschaft
- Phthalocyanine azo dyes containing 5-cyano-dichloropyrimidyl group30 Jun 1992US 5,126,443 ASandoz Ltd.
- Reactive phthalocyanine dyestuffs3 Dec 1991US 5,070,193 ABayer Aakatiengesellschaft
- Reactive phthalocyanine dyestuffs containing a fluorochloropyrimidinyl group24 Sep 1991US 5,051,501 ABayer Aktiengesellschaft
- Storage-stable solution of a copper phthalocyanine reactive dyestuff29 Jul 1986US 4,602,915 ABayer Aktiengesellschaft
No published applications in this class yet.
Most cited
By later US patents
- Storage-stable solution of a copper phthalocyanine reactive dyestuff6US 4,602,915 ABayer Aktiengesellschaft · 1986
- Reactive phthalocyanine dyestuffs6US 5,070,193 ABayer Aakatiengesellschaft · 1991
- Phthalocyanine reactive dyestuff mixture6US 5,709,717 ABayer Aktiengesellschaft · 1998
- Phthalocyanine azo dyes containing 5-cyano-dichloropyrimidyl group5US 5,126,443 ASandoz Ltd. · 1992
- Reactive phthalocyanine dyestuffs containing a fluorochloropyrimidinyl group4US 5,051,501 ABayer Aktiengesellschaft · 1991