Ronald D. Lichty

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San Francisco, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Cryptographic based electronic lock system and method of operation
- Patent number 4,837,822
- Issue date Jun 6, 1989
- Schlage Lock Company
- Thomas W. Crosley
- G07 - CHECKING-DEVICES
Information Patent Grant
Data compaction method for microprocessor cards
- Patent number 4,774,500
- Issue date Sep 27, 1988
- Wright Technologies
- Ronald D. Lichty
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Clutch mechanism
- Patent number 4,749,072
- Issue date Jun 7, 1988
- Schlage Lock Company
- Ronald D. Lichty
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES