For the Inventor, By the Inventor

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Sunnyvale, CA, United States of America

Osi Security Devices

USPTO Granted Patents = 1

Forward Citations = 149

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1 inventor (with patents filed for the assignee):

Keith S Clark (1 out of 5 patents)

1 patent: Sort by Forward Citations

1. 5083122 - Programmable individualized security system for door locks (1992-01-21),

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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#865 in Sunnyvale, CA

#28,452 in California

#133,964 in US

Sunnyvale, CA, United States of America

Osi Security Devices

Forward Citations = 149

1 inventor:

Keith S Clark (1 out of 5 patents)

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