Stephen R. Elpern

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Electrically operated actuator and method
- Patent number 6,282,931
- Issue date Sep 4, 2001
- Access Technologies, Inc.
- Scott Padiak
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Method for retrofitting a deadbolt assembly with an electrically op...
- Patent number 6,089,058
- Issue date Jul 18, 2000
- Access Technologies, Inc.
- Stephen R. Elpern
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electrically operated actuator
- Patent number 5,979,199
- Issue date Nov 9, 1999
- Access Technologies, Inc.
- Stephen R. Elpern
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electrically operated actuator
- Patent number 5,896,769
- Issue date Apr 27, 1999
- Access Technologies, Inc.
- Stephen R. Elpern
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES