Inventor · Raleigh, NC, US

Li Qi

23Patents
5h-index
30Co-inventors
69Inventor score

Filing activity: Aug 23, 2001 → Mar 13, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US9819188B1 Direct current transmission system and method Emerging Cross-Sectional Technologies 10 Active
US9048694B2 DC connection scheme for windfarm with internal MVDC collection grid Emerging Cross-Sectional Technologies 9 Active
US10693293B2 Fault protection in converter-based DC distribution systems Electricity 6 Active
US8903710B2 Synchro translation verification test for software applications Physics 5 Active
US9742331B2 Doubly-fed, variable-speed, dual-voltage AC generation and distribution systems Electricity 5 Active
US10483758B2 Method and apparatus for controlling a hybrid energy storage system Electricity 3 Active
US9762047B2 Technologies for zonal fault protection of DC distribution systems Emerging Cross-Sectional Technologies 3 Active
US10411587B2 Fault isolation and system restoration using power converter Electricity 2 Active
US11070052B2 Circuit protection system Electricity 2 Active
US11837865B2 Hybrid circuit breakers Electricity 1 Active
US11230202B2 Multiple vehicle charging system Emerging Cross-Sectional Technologies 0 Active
US9800044B2 Fault location of DC distribution systems Emerging Cross-Sectional Technologies 0 Active
US11101640B1 Solid-state protection for direct current networks Electricity 0 Active
US9748762B2 Method and apparatus for the protection of DC distribution systems Electricity 0 Active
US11394199B2 Intelligent current limiting for solid-state switching Electricity 0 Active
US9791495B2 High impedance fault location in DC distribution systems Emerging Cross-Sectional Technologies 0 Active
US9614429B2 System for converting AC electrical power to DC electrical power and methods Emerging Cross-Sectional Technologies 0 Active
US6941065B2 Camera interlocks that ensure proper movement of film Physics 0 Expired
US11955835B2 Method and control to integrate fuel cells in datacenters with ring-bus architecture Emerging Cross-Sectional Technologies 0 Active
US9608551B2 Reducing peak fault output current in a DC power generation system Electricity 0 Active
US12113396B1 Fuel cell powered ring bus architectures Emerging Cross-Sectional Technologies 0 Active
US9419428B2 Protection device for DC collection systems Electricity 0 Active
US11532933B2 Current control and circuit protection for distributed energy resources Emerging Cross-Sectional Technologies 0 Active

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