Norbert Munch

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Kelkheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Economy chrome tanning
- Patent number 4,978,361
- Issue date Dec 18, 1990
- Hoechst Aktiengesellschaft
- Karlheinz Fuchs
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Processing for rendering leather hydrophobic and oleophobic by impr...
- Patent number 4,971,835
- Issue date Nov 20, 1990
- Hoecsht Aktiengesellschaft
- Norbert Munch
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Process for short-term preservation of rawhides and skins
- Patent number 4,935,031
- Issue date Jun 19, 1990
- Hoechst Aktiengesellschaft
- Norbert Munch
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Methylolated and optionally etherified urethanes containing fluoroa...
- Patent number 4,877,540
- Issue date Oct 31, 1989
- Cassella Aktiengesellschaft
- Fritz Engelhardt
- C07 - ORGANIC CHEMISTRY