John E. Clark

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Ann Arbor, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Monitored radio frequency door edge sensor
- Patent number 5,412,297
- Issue date May 2, 1995
- Stanley Home Automation
- John E. Clark
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Level
- Patent number 5,199,177
- Issue date Apr 6, 1993
- Stanley Tools, a Division of The Stanley Works
- Walter J. Hutchins
- G01 - MEASURING TESTING
Information Patent Grant
Remote control system with teach/learn setting of identification code
- Patent number 5,148,159
- Issue date Sep 15, 1992
- Stanley Electronics
- John Clark
- G07 - CHECKING-DEVICES
Information Patent Grant
Automatic garage door operator with remote load control
- Patent number 4,929,877
- Issue date May 29, 1990
- John Clark
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Automatic garage door operator with remote load control
- Patent number 4,847,542
- Issue date Jul 11, 1989
- Multi-Elmac Corporation
- John Clark
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Accessory-expandable, radio-controlled, door operator with multiple...
- Patent number 4,808,995
- Issue date Feb 28, 1989
- Stanley Automatic Openers
- John E. Clark
- G07 - CHECKING-DEVICES