Hansruedi Walter

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Windsor, SC, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making single wood concrete layer sound absorption panel
- Patent number 5,324,469
- Issue date Jun 28, 1994
- Insul Holz-Beton Systems, Inc.
- Hansruedi Walter
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Double coated free aggregate usable in wood concrete technology and...
- Patent number 5,314,744
- Issue date May 24, 1994
- Insul Holz-Beton Systems Inc.
- Hansruedi Walter
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Coated free aggregate usable in wood concrete technology and method...
- Patent number 5,019,170
- Issue date May 28, 1991
- Insul Holz-Beton Systems Incorp.
- Hansruedi Walter
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES