Peter Czerney

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Patents Grantslast 30 patents

Information Patent Grant
Amino-substituted 2-cumaryl-(3)-chromenylium salts
- Patent number 4,417,060
- Issue date Nov 22, 1983
- Jenoptik Jena G.m.b.H.
- Peter Czerney
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Diazonium salts and a diazo-type material comprising these diazoniu...
- Patent number 4,400,458
- Issue date Aug 23, 1983
- VEB Filmfabrik Wolfen
- Fred Walkow
- C07 - ORGANIC CHEMISTRY