Chao Liu
12Patents
5h-index
14Co-inventors
63Inventor score
Filing activity: May 23, 1975 → Jul 20, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4004103A | Path-finding scheme for a multistage switching network | Electricity | 15 | Expired |
| US4228323A | Variable loop length compensated barrier circuit | Electricity | 15 | Expired |
| US4190747A | Signal corrected optocoupled device | Electricity | 12 | Expired |
| US4045615A | Monobus interface circuit using opto-coupled hybrids | Electricity | 9 | Expired |
| US3991280A | Monobus variable resistance transmission circuit | Electricity | 7 | Expired |
| US4132870A | Key telephone system optically coupled protective coupler | Electricity | 4 | Expired |
| US10349379B2 | Positioning tag replacement method and positioning server | Electricity | 1 | Active |
| US10248115B2 | Patrol-type preventive inspection system for electromechanical devices | Physics | 0 | Active |
| US9946247B2 | System for managing real-time work information of a motor fitting | Electricity | 0 | Active |
| US9591067B2 | Methods and apparatus for allocating cloud-based media resources | Electricity | 0 | Active |
| US7010123B1 | Invisible graphics context identifying system and fabrication method thereof | Physics | 0 | Expired |
| US9426520B2 | Multimedia content self-adaptive method and multimedia playing system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.