Johannes Gerum

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Unterpfaffenhofen-Germering, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of preparing a magnetic recording medium
- Patent number 5,069,931
- Issue date Dec 3, 1991
- BASF Magnetics GmbH
- Johannes Gerum
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for the production of a magnetic recording material
- Patent number 4,981,719
- Issue date Jan 1, 1991
- AGFA-Gevaert Aktiengessellschaft
- Horst Schulz
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for the production of a magnetic recording medium
- Patent number 4,869,965
- Issue date Sep 26, 1989
- Agfa-Gevaert Aktiengesellschaft
- Johannes Gerum
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Magnetic storage medium
- Patent number 4,677,030
- Issue date Jun 30, 1987
- Agfa-Gevaert Aktiengesellschaft
- Johannes Gerum
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of magnetic dispersions containing binders
- Patent number 4,465,608
- Issue date Aug 14, 1984
- Agfa-Gevaert Aktiengesellschaft
- Johannes Gerum
- G11 - INFORMATION STORAGE