Bert Ripper

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Postbauer-Heng, DE

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Patents Grantslast 30 patents

Information Patent Grant
Tool and method for the abrasive machining of a substantially plana...
- Patent number 6,439,987
- Issue date Aug 27, 2002
- Wacker Siltronic Gesellschaft fur Halbleitermaterialien AG
- Bert Ripper
- B24 - GRINDING POLISHING
Information Patent Grant
Method and device for simultaneously cutting off a multiplicity of...
- Patent number 6,295,977
- Issue date Oct 2, 2001
- Wacker-Chemie GmbH
- Bert Ripper
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for achieving a wear performance which is as linear as possi...
- Patent number 6,129,609
- Issue date Oct 10, 2000
- Wacker Siltronic Gesellschaft fur Halbleitermaterialien AG
- Bert Ripper
- B24 - GRINDING POLISHING