Inventor
SPAIN DAVID S
US3 patents
Patents
3 patentsUS6393294B1May 21, 2002
Location determination using RF fingerprinting
POLARIS WIRELESS INC451 citations97
US6782265B2Aug 24, 2004
Location determination using RF fingerprinting
POLARIS WIRELESS INC129 citations96
US7725111B2May 25, 2010
Location determination using RF fingerprinting
POLARIS WIRELESS INC65 citations95