Inventor · Campbell, CA, US

Zhishen Liu

155Patents
10h-index
14Co-inventors
73Inventor score

Filing activity: Nov 29, 2013 → Apr 12, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US10425531B1 Customized communication lists for data communications systems using high-level programming Electricity 52 Active
US9432519B1 Identifying and processing of unreturned calls in IPBX Electricity 36 Active
US10165114B1 Intelligent call handling and routing Electricity 19 Active
US9955021B1 Analysis of call metrics for call direction Electricity 18 Active
US10122682B1 Region-based bridging of calls using client-specific control and revised caller identifiers Electricity 16 Active
US10057412B1 Region-based connecting of calls using client-specific control and provisioned numbers Electricity 15 Active
US10298770B1 Template-based configuration and management of telecommunications services Electricity 13 Active
US10348902B1 Template-based management of telecommunications services Electricity 12 Active
US10142329B1 Multiple-factor authentication Electricity 11 Active
US10298751B1 Customization of alerts using telecommunications services Electricity 11 Active
US9306985B1 User configurable data storage Electricity 9 Active
US10735592B1 Routing of calls based on analysis of digital voice data in a data-communications server system Electricity 9 Active
US9300679B1 System and method for monitoring computing servers for possible unauthorized access Electricity 9 Active
US9935857B1 Analysis of system conditions from endpoint status information Electricity 8 Active
US10523813B1 Region-based connecting of calls using client-specific control and provisioned numbers Electricity 7 Active
US9949000B1 IPBX control interface for distributed networks Electricity 7 Active
US10135974B1 Client-specific control of shared telecommunications services Electricity 6 Active
US11445063B1 Apparatuses and methods involving an integrated contact center Electricity 6 Active
US10848617B1 Intelligent call handling and routing Electricity 6 Active
US9762737B1 IPBX control interface for distributed networks Electricity 6 Active
US10104236B1 IPBX control interface for distributed networks Electricity 5 Active
US9699226B1 Display dependent analytics Electricity 5 Active
US9473452B1 NAT traversal in VoIP communication system Electricity 5 Active
US11044360B1 Dynamic direction of incoming calls Electricity 5 Active
US10708440B1 Display dependent analytics Electricity 4 Active

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