Inventor
CAO KEVIN TRUNG
DE3 patents
Patents
3 patentsUS6529136B2Mar 4, 2003
Group notification system and method for implementing and indicating the proximity of individuals or groups to other individuals or groups
IBM280 citations98
US6446004B1Sep 3, 2002
System and method for implementing proximity or location driven activities
IBM710 citations98
US7259694B2Aug 21, 2007
Wireless communication system and method to provide geo-spatial related event data
IBM63 citations97