Edgar J. Unrein

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Newberg, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic lock system with battery conservation features
- Patent number 4,929,880
- Issue date May 29, 1990
- Supra Products, Inc.
- Walter G. Henderson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electronic key with interactive graphic user interface
- Patent number 4,914,732
- Issue date Apr 3, 1990
- Supra Products, Inc.
- Walter G. Henderson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electronic lock with energy conservation features
- Patent number 4,896,246
- Issue date Jan 23, 1990
- Supra Products, Inc.
- Walter G. Henderson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electronic real estate lockbox system
- Patent number 4,766,746
- Issue date Aug 30, 1988
- Supra Products, Inc.
- Walter G. Henderson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES