Inventor
SHOEMAKER CHARLES H
US4 patents
Patents
4 patentsUS5982298ANov 9, 1999
Interactive traffic display and trip planner
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US6297748B1Oct 2, 2001
Interactive traffic display and trip planner
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US7418472B2Aug 26, 2008
Systems and methods for determining remote device media capabilities
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US7516495B2Apr 7, 2009
Hardware-based software authenticator
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