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Philomena C. Libman
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Mt. Prospect, IL, US
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last 30 patents
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Patent Grant
Method of making color screens for FED and other cathodoluminscent...
Patent number
5,667,655
Issue date
Sep 16, 1997
Zenith Electronics Corporation
Philomena C. Libman
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Cataphoretic process for screening color cathode ray tubes
Patent number
4,891,110
Issue date
Jan 2, 1990
Zenith Electronics Corporation
Philomena C. Libman
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Deeply filtered television image display
Patent number
4,392,077
Issue date
Jul 5, 1983
Zenith Radio Corporation
Philomena C. Libman
H01 - BASIC ELECTRIC ELEMENTS