C09B 5/024
Only o-containing hetero rings
Official title: {only O-containing hetero rings}
C09B5/024 (Only o-containing hetero rings) appears on 4 US grants and 0 published applications in this corpus.
Search patents in C09B- Granted patents
- 4
- Published applications
- 0
- Assignees
- 1
- Inventors
- 4
- Latest grant
- 4 Dec 2001
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- 1,7-Diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides4 Dec 2001US 6,326,494 B1BASF SE
- 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides6 Feb 2001US 6,184,378 B2BASF SE
- 1,7-diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides7 Nov 2000US 6,143,905 ABASF SE
- 1,7-disubstituted perylene-3,4,9, 10-tetracarboxylic acids, their dianhydrides and diimides of said acids16 May 2000US 6,063,181 ABASF SE
No published applications in this class yet.
Most cited
By later US patents
- 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides23US 6,184,378 B2BASF SE · 2001
- 1,7-Diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides22US 6,326,494 B1BASF SE · 2001
- 1,7-diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides20US 6,143,905 ABASF SE · 2000
- 1,7-disubstituted perylene-3,4,9, 10-tetracarboxylic acids, their dianhydrides and diimides of said acids14US 6,063,181 ABASF SE · 2000