Qing Yao
7Patents
5h-index
15Co-inventors
60Inventor score
Filing activity: May 6, 1999 → Jul 16, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7673678B2 | Flow control device with a permeable membrane | Fixed Constructions | 48 | Active |
| US7857050B2 | Flow control using a tortuous path | Fixed Constructions | 43 | Active |
| US10413390B2 | Omnidirectional Scientific Toothbrush | Human Necessities | 34 | Active |
| US7239107B1 | Flexure stage | Emerging Cross-Sectional Technologies | 12 | Expired |
| US8025072B2 | Developing a flow control system for a well | Emerging Cross-Sectional Technologies | 6 | Active |
| US6426396B2 | Process for producing poly (cyclic conjugated diene) | Chemistry; Metallurgy | 3 | Expired |
| US11667586B2 | Biological preparation method for producing amino acid liquid fertilizer from waste feathers | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.