Inventor
LIU HUIFENG
CN3 patents
⚠️ This page may combine multiple inventors who share the name “LIU HUIFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CHINA CO LTD
2 patentsUS7937402B2May 3, 2011
Natural language based location query system, keyword based location query system and a natural language and keyword based location query system
NEC CHINA CO LTD43 citations91
US7908075B2Mar 15, 2011
Traffic information query system and traffic information query method
NEC CHINA CO LTD8 citations81