Thomas S. McKechnie

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Ossining, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Illumination system for LCD projection television
- Patent number 5,084,807
- Issue date Jan 28, 1992
- U.S. Philips Corporation
- Thomas S. McKechnie
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Display system with equal path lengths
- Patent number 4,864,390
- Issue date Sep 5, 1989
- North American Philips Corporation
- Thomas S. McKechnie
- G02 - OPTICS
Information Patent Grant
One-piece projection screen
- Patent number 4,773,731
- Issue date Sep 27, 1988
- North American Philips Corp.
- Jill F. Goldenberg
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection screen having high resolution and good mechanical stability
- Patent number 4,730,897
- Issue date Mar 15, 1988
- North American Philips Corporation
- Thomas S. McKechnie
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Bulk diffuser for a projection television screen
- Patent number 4,679,900
- Issue date Jul 14, 1987
- North American Philips Corporation
- Thomas S. McKechnie
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection television systems having lens tilt compensation member
- Patent number 4,672,458
- Issue date Jun 9, 1987
- North American Philips Corporation
- Thomas S. McKechnie
- H04 - ELECTRIC COMMUNICATION TECHNIQUE