only O-containing hetero rings

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Patents Grantslast 30 patents

Information Patent Grant
1,7-Diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracar...
- Patent number 6,326,494
- Issue date Dec 4, 2001
- BASF Aktiengesellschaft
- Arno Böhm
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acids, their di...
- Patent number 6,184,378
- Issue date Feb 6, 2001
- BASF Aktiengesellschaft
- Arno Böhm
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1,7-diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracar...
- Patent number 6,143,905
- Issue date Nov 7, 2000
- BASF Aktiengesellschaft
- Arno Bohm
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1,7-disubstituted perylene-3,4,9, 10-tetracarboxylic acids, their d...
- Patent number 6,063,181
- Issue date May 16, 2000
- BASF Aktiengesellschaft
- Arno Bohm
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2179920
- Patent number 2,179,920
- Issue date Nov 14, 1939
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
2128514
- Patent number 2,128,514
- Issue date Aug 30, 1938
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...