Inventor
CHANG CHI-CHAO
TW18 patents
⚠️ This page may combine multiple inventors who share the name “CHANG CHI-CHAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
XAD INC
7 patentsUS9049549B2Jun 2, 2015
Method and apparatus for probabilistic user location
XAD INC9 citations82
US11044579B2Jun 22, 2021
Method and apparatus for dynamic geo-fencing
XAD INC3 citations71
US9886703B2Feb 6, 2018
System and method for estimating mobile device locations
XAD INC4 citations70
US12075314B2Aug 27, 2024
Method and apparatus for dynamic geo-fencing
XAD INC0 citations61
US11570583B2Jan 31, 2023
Method and apparatus for dynamic geo-fencing
XAD INC0 citations61
US9210540B2Dec 8, 2015
Method and apparatus for geographic document retrieval
XAD INC0 citations50
US10089653B2Oct 2, 2018
System and method for estimating mobile device locations
XAD INC0 citations49
YAHOO INC
6 patentsUS6651086B1Nov 18, 2003
Systems and methods for matching participants to a conversation
YAHOO INC268 citations98
US7921107B2Apr 5, 2011
System for generating query suggestions using a network of users and advertisers
YAHOO INC131 citations97
US7120668B2Oct 10, 2006
Systems and methods for matching participants to a conversation
YAHOO INC77 citations97
US7849080B2Dec 7, 2010
System for generating query suggestions by integrating valuable query suggestions with experimental query suggestions using a network of users and advertisers
YAHOO INC81 citations96
US7599911B2Oct 6, 2009
Method and apparatus for search ranking using human input and automated ranking
YAHOO INC29 citations92
US7827004B2Nov 2, 2010
System and method of identifying and measuring response to user interface design
YAHOO INC9 citations82