Franz Widmer

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Basel, CH

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Patents Grantslast 30 patents

Information Patent Grant
Coating compositions for the manufacture of coated papers
- Patent number 4,367,171
- Issue date Jan 4, 1983
- Ciba-Geigy AG
- Klaus D. Leifels
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Nuclear halogenated .alpha.,.alpha.'-bis(cyclopentadienyl)xylene
- Patent number 4,140,843
- Issue date Feb 20, 1979
- Ciba-Geigy AG
- Franz Widmer
- C07 - ORGANIC CHEMISTRY