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Johann Siebels
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Wolfsburg, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Deformable structure for protection of vehicle occupants
Patent number
5,997,077
Issue date
Dec 7, 1999
Volkswagen AG
Johann Siebels
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Article, such as a turbine rotor and blade which comprises a first...
Patent number
4,362,471
Issue date
Dec 7, 1982
Volkswagenwerk Aktiengesellschaft
Manfred Langer
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Ceramic-metal assembly
Patent number
4,335,998
Issue date
Jun 22, 1982
Volkswagenwerk Aktiengesellschaft
Johann Siebels
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Refractory articles and composite metal-ceramic articles (cermets)...
Patent number
4,277,539
Issue date
Jul 7, 1981
Rosenthal Technik AG
Hartmut Keller
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Thermally insulated composite article
Patent number
4,264,660
Issue date
Apr 28, 1981
Volkswagenwerk Aktiengesellschaft
Johann Siebels
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Method of producing an article which comprises a first zone of a no...
Patent number
4,214,906
Issue date
Jul 29, 1980
Volkswagenwerk Aktiengesellschaft
Manfred Langer
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of manufacturing a catalyst for catalytic purification of ex...
Patent number
4,148,120
Issue date
Apr 10, 1979
Volkswagenwerk Aktiengesellschaft
Johann Siebels
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High temperature resistant, heat insulating ceramic material
Patent number
4,144,195
Issue date
Mar 13, 1979
Volkswagenwerk Aktiengesellschaft
Johann Siebels
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES