Norbert Rau

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Sulzbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing block-shaped polymethacrylimide foamed materials
- Patent number 6,670,405
- Issue date Dec 30, 2003
- Roehm GmbH & Co KG
- Sabine Servaty
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for making polymethacrylimide polymers
- Patent number 5,324,793
- Issue date Jun 28, 1994
- Rohm GmbH
- Manfred Brehm
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing anisotropic liquid crystal layers on a substrate
- Patent number 5,247,377
- Issue date Sep 21, 1993
- Rohm GmbH Chemische Fabrik
- Juergen Omeis
- G02 - OPTICS
Information Patent Grant
Optical data storage apparatus and method utilizing an amorphous po...
- Patent number 5,023,859
- Issue date Jun 11, 1991
- Rohm GmbH Chemische Fabrik
- Manfred Eich
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard foam cores for laminates
- Patent number 4,996,109
- Issue date Feb 26, 1991
- Rohm GmbH
- Manfred Krieg
- B32 - LAYERED PRODUCTS