Inventor
TANG HONG DA
US4 patents
⚠️ This page may combine multiple inventors who share the name “TANG HONG DA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PANGO NETWORKS INC
3 patentsUS7257392B2Aug 14, 2007
Systems, devices, and methods for providing services in a proximity based environment
PANGO NETWORKS INC105 citations95
US7139557B2Nov 21, 2006
Systems, devices and methods for providing services in a proximity-base environment
PANGO NETWORKS INC172 citations95
US6347095B1Feb 12, 2002
System, devices and methods for use in proximity-based networking
PANGO NETWORKS INC141 citations94