Yunfeng Liu
52Patents
7h-index
108Co-inventors
71Inventor score
Filing activity: Nov 15, 2007 → Mar 19, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9548620B2 | System and method for power charging or discharging | Emerging Cross-Sectional Technologies | 14 | Active |
| US9154982B2 | Method and system for a traffic management network | Electricity | 13 | Active |
| US7903432B2 | High-voltage power generation system and package | Electricity | 11 | Active |
| US9787217B2 | Power conversion circuit and power conversion system | Electricity | 9 | Active |
| US7714583B2 | Power supply for supplying multi-channel, stable, isolated DC power and method of making same | Electricity | 8 | Active |
| US9083261B2 | Neutral point clamped converter control system and control method and compensation unit | Electricity | 7 | Active |
| US9923485B2 | Multi-channel inverter systems | Emerging Cross-Sectional Technologies | 7 | Active |
| US9385632B2 | Multi-level inverter and power supply system | Electricity | 6 | Active |
| US9190923B2 | System and method for converter switching frequency control | Emerging Cross-Sectional Technologies | 5 | Active |
| US8038867B2 | Electrodialysis device and process | Emerging Cross-Sectional Technologies | 5 | Active |
| US7616000B2 | Ultra low output impedance RF power amplifier for parallel excitation | Physics | 5 | Active |
| US10163562B2 | Coupled inductor structure | Electricity | 5 | Active |
| US9641098B2 | Multi-level inverter apparatus and method | Electricity | 4 | Active |
| US9595862B1 | Multi-level inverter systems | Electricity | 3 | Active |
| US10761241B2 | Methods for optimizing bunch distance of fractured horizontal wells of shale gas | Physics | 3 | Active |
| US8645479B2 | Chatting system, method and apparatus for virtual pet | Physics | 2 | Active |
| US9601262B2 | Coupled inductor and power converter | Electricity | 2 | Active |
| US9479071B2 | Multilevel converter and power supply system | Electricity | 1 | Active |
| US9516723B2 | System and method for driving light emitting diodes | Electricity | 1 | Active |
| US11316347B2 | Photovoltaic power system and control method thereof | Emerging Cross-Sectional Technologies | 1 | Active |
| US11146181B2 | Control method and apparatus for common-mode modulated wave of single-phase five-level inverter | Emerging Cross-Sectional Technologies | 0 | Active |
| US11187538B2 | Method for judging rotating characteristics of light sources based on summation calculation in visible light indoor positioning | Physics | 0 | Active |
| US12184073B2 | Energy storage system, on/off-grid switching method, and power conversion system | Electricity | 0 | Active |
| US11693062B2 | Method for processing direct current electric arc and apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US11644974B2 | Time-sharing wave recording method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.