Qihui Zhang
9Patents
2h-index
19Co-inventors
44Inventor score
Filing activity: Feb 20, 1998 → Apr 30, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6285434A | Substrate for colored cholesteric liquid crystal display allowing cholesteric liquid crystal material to be filled by surface tension without vacuum | Physics | 25 | Expired |
| US9212804B2 | Lens and an asymmetrical light distribution illuminating device having such lens | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9255667B2 | LED lighting assembly and an LED retrofit lamp having the LED lighting assembly | Emerging Cross-Sectional Technologies | 2 | Active |
| US9500323B2 | Lens for LED illumination | Physics | 2 | Active |
| US10787821B2 | Locking type panel and panel connecting piece and connection method therefor | Fixed Constructions | 0 | Active |
| US9863626B2 | Lamp holder and manufacturing method thereof and illuminating device having the lamp holder | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10197239B2 | Illumination apparatus | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9366416B2 | Lens and LED retrofit lamp | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9518705B2 | Lens and an illumination device having the lens | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.