Ronald T. Keen

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Marion County, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Television receiver with selectable video input signals
- Patent number 4,660,084
- Issue date Apr 21, 1987
- RCA Corporation
- Paul D. Filliman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Television receiver responsive to plural video signals
- Patent number 4,660,085
- Issue date Apr 21, 1987
- RCA Corporation
- Leopold A. Harwood
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Video signal processor with selective clamp
- Patent number 4,612,577
- Issue date Sep 16, 1986
- RCA Corporation
- Ronald T. Keen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE