Douglas J. Williams

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Tacoma, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electric power generating lantern using forced air cooled low bandg...
- Patent number 6,337,437
- Issue date Jan 8, 2002
- JX Crystals Inc.
- Lewis M. Fraas
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thermophotovoltaic electric generator using low bandgap photovoltai...
- Patent number 5,616,186
- Issue date Apr 1, 1997
- JX Crystals Inc.
- Lewis M. Fraas
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER