Inventor
LANGFORD DAVID WESLEY
US5 patents
⚠️ This page may combine multiple inventors who share the name “LANGFORD DAVID WESLEY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
Q TRACK CORP
4 patentsUS7298314B2Nov 20, 2007
Near field electromagnetic positioning system and method
Q TRACK CORP50 citations94
US7859452B2Dec 28, 2010
Near field electromagnetic calibration system
Q TRACK CORP16 citations91
US7592949B2Sep 22, 2009
Near field electromagnetic positioning calibration system and method
Q TRACK CORP16 citations91
US7538715B2May 26, 2009
Electromagnetic location and display system and method
Q TRACK CORP43 citations91