Helmut Leptien

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Wolfsburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Spiral compressor with setback portion on radially outer peripheral...
- Patent number 4,859,159
- Issue date Aug 22, 1989
- Volkswagen AG
- Helmut Leptien
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Internal combustion engine with a sound insulating casing
- Patent number 4,324,208
- Issue date Apr 13, 1982
- Volkswagenwerk Aktiengesellschaft
- Hermann Danckert
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Heat pump compressor integrated in an internal-combustion engine
- Patent number 4,308,001
- Issue date Dec 29, 1981
- Volkswagenwerk Aktiengesellschaft
- Peter Hofbauer
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS