Assignee
PINTERRA CORP
US2 patents
Top patents by PatentIndex Score
US5689270ANov 18, 1997
Navigation and positioning system and method using uncoordinated becon signals
PINTERRA CORP180 citations95
US5774829AJun 30, 1998
Navigation and positioning system and method using uncoordinated beacon signals in conjunction with an absolute positioning system
PINTERRA CORP449 citations93