loadpatents
name:-0.20976305007935
name:-0.032522916793823
name:-0.00053000450134277
Liu; Chung-Zin Patent Filings

Liu; Chung-Zin

Patent Applications and Registrations

Patent applications and USPTO patent grants for Liu; Chung-Zin.The latest application filed is for "online charging for roaming users in a proxy online charging system of a visited network".

Company Profile
0.23.21
  • Liu; Chung-Zin - Naperville IL US
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Method of call conferencing to support session continuity for multi-mode clients
Grant 9,130,965 - Grinshpun , et al. September 8, 2
2015-09-08
Approach for quality of service control on un-wanted services (e.g. voice over internet protocol or multimedia) over wireline and wireless IP network
Grant 8,792,823 - Liu , et al. July 29, 2
2014-07-29
Online Charging For Roaming Users In A Proxy Online Charging System Of A Visited Network
App 20120157041 - Cai; Yigang ;   et al.
2012-06-21
Method of providing transcoding during voice-over-internet protocol handoff
Grant 8,204,022 - Lassers , et al. June 19, 2
2012-06-19
Online charging for roaming users in a proxy online charging system of a visited network
Grant 8,175,575 - Cai , et al. May 8, 2
2012-05-08
Charging in LTE/EPC communication networks
Grant 8,116,728 - Cai , et al. February 14, 2
2012-02-14
Method of transferring call transition messages between network controllers of different radio technologies
Grant 7,978,683 - Balogh , et al. July 12, 2
2011-07-12
Approach for QoS control on un-wanted services (e.g. VoIP or Multimedia) over wireless and wireless IP network
App 20110090849 - Liu; Chung-Zin ;   et al.
2011-04-21
Method of supporting quality-of-service application session continuity during inter-technology handover using a common packet data function
Grant 7,920,523 - Grinshpun , et al. April 5, 2
2011-04-05
Packet filtering/classification and/or policy control support from both visited and home networks
Grant 7,844,728 - Anderson , et al. November 30, 2
2010-11-30
Detection of bearer loss in an IP-based multimedia session
App 20100128613 - Liu; Chung-Zin ;   et al.
2010-05-27
Online Charging For Roaming Users In A Proxy Online Charging System Of A Visited Network
App 20090264096 - CAI; Yigang ;   et al.
2009-10-22
Charging In Lte/epc Communication Networks
App 20090264097 - Cai; Yigang ;   et al.
2009-10-22
Fast network SIP/SDP procedures for conference operations upon request from end user with optimization of network resources
Grant 7,586,857 - Ejzak , et al. September 8, 2
2009-09-08
Method Of Provding Transcoding During Voice-over-internet Protocol Handoff
App 20090209255 - LASSERS; Harold Aaron ;   et al.
2009-08-20
Method Of Supporting Quality-of-service Application Session Continuity During Inter-technology Handover Using A Common Packet Data Function
App 20090175239 - Grinshpun; Edward ;   et al.
2009-07-09
Method Of Best Effort Handoff To Maintain Radio Bearer And Mip Session Continuity For Multi-mode Mobile Units
App 20090141683 - Grinshpun; Edward ;   et al.
2009-06-04
Method Of Call Conferencing To Support Session Continuity For Multi-mode Clients
App 20090129296 - GRINSHPUN; EDWARD ;   et al.
2009-05-21
Packet filtering/classification and/or policy control support from both visited and home networks
App 20090037999 - Anderson; Thomas W. ;   et al.
2009-02-05
Approach for QoS control on un-wanted service (e.g. VoIP or Multimedia) over wireless and wireless IP network
App 20080095136 - Liu; Chung-Zin ;   et al.
2008-04-24
Architecture to support service features for wireless calls in a wireless telecommunication system
Grant 7,062,265 - Chang , et al. June 13, 2
2006-06-13
Queuing for radio channel availability
Grant 7,013,129 - Goss , et al. March 14, 2
2006-03-14
Method of transferring call transition messages between network controllers of different radio technologies
App 20050243870 - Balogh, Dan Anthony ;   et al.
2005-11-03
System for providing interoperability of a proprietary enterprise communication network with a cellular communication network
App 20050113134 - Bushnell, William Jackson ;   et al.
2005-05-26
System for providing interoperability of call pickup service in a proprietary enterprise communication network and a cellular communication network
App 20050113077 - Bushnell, William Jackson ;   et al.
2005-05-26
Methods and apparatus for provision of centralized calling information and features to wireless users
App 20050043017 - Esposito, Daniel ;   et al.
2005-02-24
Fast network SIP/SDP procedures for conference operations upon request from end user with optimization of network resources
App 20040196867 - Ejzak, Richard Paul ;   et al.
2004-10-07
Enhanced wireless radio channel utilization
Grant 6,658,255 - Goss , et al. December 2, 2
2003-12-02
Distributed cellular communication system architecture for the co-existence of multiple technologies
Grant 6,625,153 - Liu September 23, 2
2003-09-23
Queuing for radio channel availability
App 20020193119 - Goss, Stephen C. ;   et al.
2002-12-19
Shared capacity for wireless networks
App 20020193120 - Goss, Stephen C. ;   et al.
2002-12-19
Call reservation for wireless systems
App 20020193117 - Goss, Stephen C. ;   et al.
2002-12-19
Cellular call processor having concurrent instances of call models to support mixed media communication connections
Grant 6,434,382 - Liu , et al. August 13, 2
2002-08-13
Method for optimizing mobile wireless communications routed across plural interconnected networks
Grant 6,434,139 - Liu , et al. August 13, 2
2002-08-13
Rate change notification
App 20020107000 - Goss, Stephen Clifford ;   et al.
2002-08-08
Implementing and selecting between virtual private wireless telecommunications networks
Grant 6,405,040 - Liu , et al. June 11, 2
2002-06-11
Conferencing and announcement generation for wireless VoIP and VoATM calls
Grant 6,392,999 - Liu , et al. May 21, 2
2002-05-21
Cellular call processor having concurrent instances of call models to support mixed media communication connections
App 20010009852 - Liu, Chung-Zin ;   et al.
2001-07-26
System and method for CDMA handoff using telemetry to determine the need for handoff and to select the destination cell site
Grant 6,061,337 - Light , et al. May 9, 2
2000-05-09
Method for assigning feature sets on virtual private telecommunications networks
Grant 6,002,679 - Liu , et al. December 14, 1
1999-12-14
Method for assigning feature sets on virtual private telecommunications networks
Grant 5,949,770 - Liu , et al. September 7, 1
1999-09-07
Method for implementing virtual private wireless telecommunications networks
Grant 5,943,332 - Liu , et al. August 24, 1
1999-08-24

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