07119686 is referenced by 77 patents and cites 450 patents.

An apparatus and method for preventing theft in automotive vehicle service centers. A transmitter transmits a wireless security signal which defines a perimeter. At least one portable tool for use in automotive vehicle service centers includes a receiver configured to receive a transmitted security signal. Security circuitry is actuated if the tool is outside the perimeter defined by the security signal.

Title
Theft prevention device for automotive vehicle service centers
Application Number
10/823140
Publication Number
7119686 (B2)
Application Date
April 13, 2004
Publication Date
October 10, 2006
Inventor
J David Vonderhaar
Bolingbrook
IL, US
Kevin I Bertness
Batavia
IL, US
Agent
Westman Champlin & Kelly P A
Leanne R Taveggia
Assignee
Midtronics
IL, US
IPC
G08B 13/14
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