Harry A. Hartley

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Palatine, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
System for updating an authorization memory
- Patent number 5,680,457
- Issue date Oct 21, 1997
- Zenith Electronics Corporation
- Caitlin B. Bestler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Countdown system for conditional access module
- Patent number 5,590,202
- Issue date Dec 31, 1996
- Zenith Electronics Corporation
- Caitlin B. Bestler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Upstream transmission using multiple transmission tags and downstre...
- Patent number 5,517,502
- Issue date May 14, 1996
- Zenith Electronics Corp.
- Caitlin B. Bestler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE