Klaus Wittenmayer

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Uetze, DE

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Patents Grantslast 30 patents

Information Patent Grant
Sound insulating element having absorption properties for partition...
- Patent number 5,153,388
- Issue date Oct 6, 1992
- Dr. Alois Stankiewicz GmbH
- Klaus Wittenmayer
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Interior noise reduction in motor vehicles
- Patent number 5,000,483
- Issue date Mar 19, 1991
- Dr. Alois Stankiewicz GmbH
- Ehrenfried Blumel
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Interior noise reduction in motor vehicles
- Patent number 4,663,381
- Issue date May 5, 1987
- Dr. Alois Stankiewicz GmbH
- Ehrenfried Blumel
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Motor vehicle noise insulation
- Patent number 4,655,496
- Issue date Apr 7, 1987
- Dr. Alois Stankiewica GmbH
- Heinemann Gahlau
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Sound barriers
- Patent number 4,574,915
- Issue date Mar 11, 1986
- Dr. Alois Stankiewicz GmbH
- Heinemann Gahlau
- B60 - VEHICLES IN GENERAL