Patrick Hvolka

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Salt Lake City, UT, US

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Patents Grantslast 30 patents

Information Patent Grant
Two speed gearbox
- Patent number 7,537,536
- Issue date May 26, 2009
- Dusan J. Hvolka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Two speed planetary electric shift gearbox
- Publication number 20090247346
- Publication date Oct 1, 2009
- DJH Engineering Center, Inc.
- Dusan J. Hvolka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Two speed gearbox
- Publication number 20070287575
- Publication date Dec 13, 2007
- Dusan J. Hvolka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...