Ralf Sperber

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Wendlingen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Gear wheel variable transmission with two sub-gears arranged parall...
- Patent number 6,595,077
- Issue date Jul 22, 2003
- DaimlerChrysler AG
- Axel Geiberger
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Coupling tooth of a selector sleeve of a gear coupling for coupling...
- Patent number 6,296,100
- Issue date Oct 2, 2001
- DaimlerChrysler AG
- Martin Schetter
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Variable-ratio gear transmission having two partial transmissions e...
- Patent number 6,250,171
- Issue date Jun 26, 2001
- DaimlerChrysler AG
- Ralf Sperber
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Toothed gear transmission having two partial transmissions disposed...
- Patent number 6,209,406
- Issue date Apr 3, 2001
- DaimlerChrysler AG
- Ralf Sperber
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Toothed gear transmission having two partial transmissions disposed...
- Patent number 6,209,407
- Issue date Apr 3, 2001
- DaimlerChrysler AG
- Markus Heinzel
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...