Willi Eifler

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Cologne-Stammheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of polyisocyanates
- Patent number 4,597,909
- Issue date Jul 1, 1986
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polyurethane urea elastomers
- Patent number 4,303,773
- Issue date Dec 1, 1981
- Bayer Aktiengesellschaft
- Otto Ganster
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Triaryl-methane dyestuffs
- Patent number 4,115,413
- Issue date Sep 19, 1978
- Bayer Aktiengesellschaft
- Roderich Raue
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...