Heinz-Peter Hemmerich

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Krefeld, DT

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Patents Grantslast 30 patents

Information Patent Grant
Degradable plastic composition
- Patent number 4,073,764
- Issue date Feb 14, 1978
- Bayer Aktiengesellschaft
- Heinz-Peter Hemmerich
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Chalking-resistant titanium dioxide pigment
- Patent number 4,062,692
- Issue date Dec 13, 1977
- Bayer Aktiengesellschaft
- Heinz-Peter Hemmerich
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Degradable plastics compositions containing a transition metal comp...
- Patent number 3,992,487
- Issue date Nov 16, 1976
- Bayer Aktiengesellschaft
- Heinz-Peter Hemmerich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...