Leonard J. Hitchcock

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Montrose, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Current share circuit for DC to DC converters
- Patent number 5,521,809
- Issue date May 28, 1996
- International Business Machines Corporation
- Donald J. Ashley
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter with reset control for enhanced zero-volt switching
- Patent number 5,418,703
- Issue date May 23, 1995
- International Business Machines Corp.
- Leonard J. Hitchcock
- G05 - CONTROLLING REGULATING
Information Patent Grant
Resonant-transition DC-to-DC converter
- Patent number 5,132,889
- Issue date Jul 21, 1992
- IBM Corporation
- Leonard J. Hitchcock
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Full bridge power converter circuit
- Patent number 4,860,189
- Issue date Aug 22, 1989
- International Business Machines Corp.
- Leonard J. Hitchcock
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER