Inventor · Schaumburg, IL, US

Chandra Warrier

16Patents
13h-index
20Co-inventors
70Inventor score

Filing activity: Jan 27, 2000 → Oct 15, 2004

Most-cited inventions

PatentTitleAreaCited byStatus
US6829473B2 Roaming and hand-off support for prepaid billing for wireless data networks Electricity 163 Expired
US6973309B1 Method and system for re-direction and handoff for pre-paid mobile services in third generation networks Electricity 160 Expired
US7062566B2 System and method for using virtual local area network tags with a virtual private network Electricity 131 Expired
US7080151B1 Method and system for mobile IP home agent redundancy by using home agent control nodes for managing multiple home agents Electricity 94 Expired
US6684256B1 Routing method for mobile wireless nodes having overlapping internet protocol home addresses Electricity 74 Expired
US6978128B1 System and method to allow simple IP mobile nodes to operate seamlessly in a mobile IP network with true roaming capabilities Electricity 73 Expired
US6707809B1 Method for forwarding data to idle mobile nodes, and home agent control node for use in the method Electricity 68 Expired
US7082130B2 System and method for point-to-point protocol device redundancey Electricity 32 Expired
US7426202B2 Routing method for mobile wireless nodes having overlapping internet protocol home addresses Electricity 32 Expired
US7324499B1 Method and system for automatic call monitoring in a wireless network Electricity 31 Active
US6795705B1 Hot standby protocol for wireless devices Electricity 30 Expired
US7218609B2 Method and system of transferring session speed and state information between access and home networks Emerging Cross-Sectional Technologies 18 Expired
US7184530B2 Prepaid billing support for simultaneous communication sessions in data networks Electricity 15 Expired
US7173905B1 PDSN fast tunnel lookup Electricity 8 Expired
US7403475B1 Method and apparatus for allocating data packet pathways Electricity 6 Expired
US7426389B2 Method and apparatus for implementing direct routing Electricity 0 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.