David W. Johnston

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Waverly, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Ceramic feedthroughs for discharge lamps
- Patent number 6,232,718
- Issue date May 15, 2001
- Osray Sylvania Inc.
- David W. Johnston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Lead-in wire for compact fluorescent lamps
- Patent number 4,908,546
- Issue date Mar 13, 1990
- GTE Products Corporation
- John W. Shaffer
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Discharge lamp having envelope support spacer
- Patent number 4,720,656
- Issue date Jan 19, 1988
- GTE Products Corporation
- David W. Johnston
- H01 - BASIC ELECTRIC ELEMENTS