Nicholas D. Wren

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Boerne, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Device to provide continuously variable gear reduction
- Patent number 6,807,878
- Issue date Oct 26, 2004
- Nicholas Wren
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Device to provide continuously variable gearing
- Patent number 6,447,421
- Issue date Sep 10, 2002
- Nicholas D. Wren
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Front chain wheel chain guide
- Patent number 4,832,667
- Issue date May 23, 1989
- Nicholas D. Wren
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

Information Patent Application
Device to provide continuously variable gear reduction
- Publication number 20040035231
- Publication date Feb 26, 2004
- Nicholas Wren
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...