Assignee
CAI YIGANG
US·87 granted patents·47 pending applications·1,481 citations·filing 2004–2016
Top patents by PatentIndex Score
134 records- 0199US8121624B2Message spoofing detection via validation of originating switchCAI YIGANG·Filed 2006·Granted Feb 21, 2012·222 cites·16 claims
- 0298US8483135B2Online charging for sessions that are transferred between network domainsCAI YIGANG·Filed 2008·Granted Jul 9, 2013·219 cites·20 claims
- 0398US8131266B2Short message service communication securityCAI YIGANG·Filed 2008·Granted Mar 6, 2012·225 cites·17 claims
- 0498US8126123B2Pre-biller in internet protocol multimedia subsystem (IMS) charging gateway function (CGF)CAI YIGANG·Filed 2007·Granted Feb 28, 2012·261 cites·6 claims
- 0597US8090346B2Controlling a shutoff/restart of mobile virtual network operations prepaid servicesCAI YIGANG·Filed 2006·Granted Jan 3, 2012·95 cites·7 claims
- 0696US8175975B2IMS device operable for financial transaction authorization and ID cards displayCAI YIGANG·Filed 2008·Granted May 8, 2012·70 cites·20 claims
- 0795US8792857B2Notification of charging rate adjustments in regions of a mobile network to control bandwidth usage in the regionsCAI YIGANG·Filed 2009·Granted Jul 29, 2014·44 cites·18 claims
- 0894US8990322B2Archive control for text messagesCAI YIGANG·Filed 2011·Granted Mar 24, 2015·31 cites·10 claims
- 0992US8254541B2Validating caller ID information to protect against caller ID spoofingCAI YIGANG·Filed 2006·Granted Aug 28, 2012·26 cites·16 claims
- 1091US9240946B2Message restriction for diameter serversCAI YIGANG·Filed 2008·Granted Jan 19, 2016·23 cites·16 claims
- 1191US8271007B2Managing SMS spoofing using SMPP protocolCAI YIGANG·Filed 2010·Granted Sep 18, 2012·18 cites·20 claims
- 1291US8175575B2Online charging for roaming users in a proxy online charging system of a visited networkCAI YIGANG·Filed 2008·Granted May 8, 2012·20 cites·18 claims
- 1388US8265090B2Storing access network information for an IMS user in a subscriber profileCAI YIGANG·Filed 2007·Granted Sep 11, 2012·14 cites·14 claims
- 1488US8116728B2Charging in LTE/EPC communication networksCAI YIGANG·Filed 2008·Granted Feb 14, 2012·16 cites·20 claims
- 1585US8165561B2IMS networks providing business-related content to wireless devicesCAI YIGANG·Filed 2007·Granted Apr 24, 2012·13 cites·20 claims
- 1684US8605874B2Per-session dynamic charging caps in communication networksCAI YIGANG·Filed 2012·Granted Dec 10, 2013·4 cites·20 claims
- 1784US8438231B2Telecommunication messaging through a social networking serviceCAI YIGANG·Filed 2010·Granted May 7, 2013·8 cites·20 claims
- 1884US8126124B2Charging for long duration sessions in communication networksCAI YIGANG·Filed 2007·Granted Feb 28, 2012·9 cites·21 claims
- 1983US9100381B2Method and apparatus for providing virtual Wi-Fi accessCAI YIGANG·Filed 2008·Granted Aug 4, 2015·10 cites·8 claims
- 2081US8189752B2Per-session dynamic charging caps in communication networksCAI YIGANG·Filed 2007·Granted May 29, 2012·7 cites·20 claims
- 2179US8831560B2Charging method selection for service data flows based on the data services being requestedCAI YIGANG·Filed 2010·Granted Sep 9, 2014·5 cites·18 claims
- 2279US8155290B2Systems and methods for providing per call measurement data in an IMS networkCAI YIGANG·Filed 2006·Granted Apr 10, 2012·6 cites·20 claims
- 2378US9119049B2Voice notification to the destination of a text message that is engaged in a voice callCAI YIGANG·Filed 2010·Granted Aug 25, 2015·4 cites·20 claims
- 2478US8451988B2Delivery of text messages to wireline phones through caller ID functionalitiesCAI YIGANG·Filed 2008·Granted May 28, 2013·7 cites·20 claims
- 2577US9848090B2Offline charging per service data flowCAI YIGANG·Filed 2012·Granted Dec 19, 2017·4 cites·17 claims
- 2677US9438746B2Centralized charging systems for offline charging and online chargingCAI YIGANG·Filed 2008·Granted Sep 6, 2016·4 cites·20 claims
- 2777US9231774B2Congestion control for radio access networks (RAN)CAI YIGANG·Filed 2012·Granted Jan 5, 2016·4 cites·20 claims
- 2877US9032483B2Authenticating a communication device and a user of the communication device in an IMS networkCAI YIGANG·Filed 2007·Granted May 12, 2015·7 cites·14 claims
- 2977US8990917B2Authentication of applications that access web servicesCAI YIGANG·Filed 2012·Granted Mar 24, 2015·4 cites·20 claims
- 3077US8289885B2Third party charging for SIP sessionsCAI YIGANG·Filed 2006·Granted Oct 16, 2012·7 cites·20 claims
- 3177US8139735B2IMS gateway systems and methodsCAI YIGANG·Filed 2006·Granted Mar 20, 2012·10 cites·18 claims
- 3276US9699323B2Separate charging for supplemental content in a data flowCAI YIGANG·Filed 2013·Granted Jul 4, 2017·3 cites·16 claims
- 3376US9088440B2Telecom information for web services that are provided by a telecom networkCAI YIGANG·Filed 2012·Granted Jul 21, 2015·4 cites·20 claims
- 3476US8620262B2Advice of charging (AoC) services in IMS networksCAI YIGANG·Filed 2009·Granted Dec 31, 2013·4 cites·19 claims
- 3575US8935413B2Delivery report for text messages in SIP communicationsCAI YIGANG·Filed 2010·Granted Jan 13, 2015·4 cites·20 claims
- 3675US8406732B2Rule based hierarchical account resource management system and methodCAI YIGANG·Filed 2007·Granted Mar 26, 2013·4 cites·20 claims
- 3774US8837500B2Service data flow direction/redirectionCAI YIGANG·Filed 2011·Granted Sep 16, 2014·3 cites·14 claims
- 3874US8675831B2Storage of data messages for later retrieval by the recipientCAI YIGANG·Filed 2006·Granted Mar 18, 2014·5 cites·15 claims
- 3974US8301114B2Offline charging for sessions over a 3GPP network and a WLAN access networkCAI YIGANG·Filed 2011·Granted Oct 30, 2012·3 cites·8 claims
- 4072US8457666B2Interface between web applications for text messaging and packet-switched networksCAI YIGANG·Filed 2011·Granted Jun 4, 2013·3 cites·9 claims
- 4172US8218742B2Method of correlating charging data records within an offline charging systemCAI YIGANG·Filed 2007·Granted Jul 10, 2012·5 cites·24 claims
- 4271US8848604B2Application-originated text messages delivered over a packet-switched networkCAI YIGANG·Filed 2011·Granted Sep 30, 2014·3 cites·17 claims
- 4371US8477912B2Content sharing through multimedia ringback tonesCAI YIGANG·Filed 2006·Granted Jul 2, 2013·3 cites·18 claims
- 4471US8102981B2Alerting for long duration sessions in communication networksCAI YIGANG·Filed 2006·Granted Jan 24, 2012·4 cites·20 claims
- 4568US8228925B2Interactive voice response system for online and offline charging and for multiple networksCAI YIGANG·Filed 2005·Granted Jul 24, 2012·4 cites·20 claims
- 4667US9712392B2SIP endpoint configuration in VoIP networksCAI YIGANG·Filed 2007·Granted Jul 18, 2017·4 cites·17 claims
- 4767US9161187B2Caller ID for text messagingCAI YIGANG·Filed 2012·Granted Oct 13, 2015·2 cites·14 claims
- 4866US9450781B2Spam reporting and management in a communication networkCAI YIGANG·Filed 2010·Granted Sep 20, 2016·2 cites·17 claims
- 4966US8391899B2Text message delivery to a mobile device in a wireless communication networkCAI YIGANG·Filed 2010·Granted Mar 5, 2013·2 cites·20 claims
- 5065US8295456B2IMS budget control for a media change during an IMS sessionCAI YIGANG·Filed 2006·Granted Oct 23, 2012·4 cites·20 claims
Showing the top 50 of 134 patent records by PatentIndex Score.
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