Thomas A. Johnston

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Colorado Springs, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Constant output transmission apparatus
- Patent number 6,258,004
- Issue date Jul 10, 2001
- Thomas A. Johnston
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Continuously variable transmission utilizing variable viscous coupling
- Patent number 5,766,108
- Issue date Jun 16, 1998
- Thomas A. Johnston
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Continuously variable transmission apparatus
- Patent number 5,299,985
- Issue date Apr 5, 1994
- Thomas A. Johnston
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Variable transmission apparatus
- Patent number 5,030,180
- Issue date Jul 9, 1991
- Thomas A. Johnston
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...