Siegfried Schaper

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Gaimersheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of blow molding and fluorinating plastic containers
- Patent number 4,830,810
- Issue date May 16, 1989
- Audi AG
- Peter Ufer
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Motor vehicle fiber-reinforced synthetic material leaf spring or tr...
- Patent number 4,771,997
- Issue date Sep 20, 1988
- Audi AG
- Hans-Gunther Haldenwanger
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of making a piston
- Patent number 4,450,610
- Issue date May 29, 1984
- Audi Nsu Auto Union Aktiengesellschaft
- Siegfried Schaper
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for production of a helical spring from a fiber-reinforced p...
- Patent number 4,434,121
- Issue date Feb 28, 1984
- Audi Nsu Auto Union Aktiengesellschaft
- Siegfried Sch/a/ per
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for making connecting rods for internal combustion engines
- Patent number 4,408,380
- Issue date Oct 11, 1983
- Audi Nsu Auto Union Aktiengesellschaft
- Siegfried Schaper
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL