Gerhard Apel

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Krefeld, DT

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Patents Grantslast 30 patents

Information Patent Grant
Blowing agent mixture
- Patent number 4,065,401
- Issue date Dec 27, 1977
- Bayer Aktiengesellschaft
- Wolfgang Cohnen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilized acrylic acid esters of polyhydric alcohols and a process...
- Patent number 4,053,504
- Issue date Oct 11, 1977
- Bayer Aktiengesellschaft
- Hans Jurgen Rosenkranz
- C07 - ORGANIC CHEMISTRY