Ping Liu
24Patents
5h-index
6Co-inventors
62Inventor score
Filing activity: Feb 7, 1989 → Jan 15, 2025
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4884317A | Hinge units for joining a case and its lid | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5251192A | CD player actuation system | Physics | 10 | Expired |
| USD1035633S1 | Combined phone stand and speaker | General | 10 | Active |
| USD935536S1 | Sleeping baby doll | General | 6 | Active |
| US5040164A | Record player with turntable brake and balance wheels | Physics | 6 | Expired |
| USD464641S1 | Speaker | General | 5 | Expired |
| USD1070835S1 | Combined speaker and phone stand | General | 5 | Active |
| USD465210S1 | Speaker | General | 4 | Expired |
| US10123175B2 | Systems and methods for UE positioning in a distributed antenna wireless system | Electricity | 3 | Active |
| US6792117B2 | Orientation adjusting apparatus for speakers | Electricity | 3 | Expired |
| USD470472S1 | Speaker | General | 3 | Expired |
| USD436587S | Speaker | General | 3 | Expired |
| US5210737A | Separable compact disc player with an elastic hold-down member | Physics | 2 | Expired |
| USD464946S1 | Speaker | General | 2 | Expired |
| USD1067847S1 | Car mat | General | 1 | Active |
| US12264703B2 | Locking mechanism and child's product | Emerging Cross-Sectional Technologies | 1 | Active |
| US10841813B2 | Device to guide equipment cable installation between radio ports of a base station and multiple antennas | Electricity | 0 | Active |
| USD1067846S1 | Car mat | General | 0 | Active |
| US12076207B2 | Systems and methods for precision wing placement | Physics | 0 | Active |
| US9906911B2 | Systems and methods for UE positioning in a distributed antenna wireless system | Electricity | 0 | Active |
| USD1068600S1 | Car mat | General | 0 | Active |
| US9794013B2 | Uplink interference management in time division duplex (TDD) network systems | Electricity | 0 | Active |
| USD1090297S1 | Locator | General | 0 | Active |
| US10903919B2 | Massive MIMO AAS supervision | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.