Hung-Shan Chen
6Patents
4Active
6Granted
40Portfolio score
Filing activity: Nov 25, 2002 → Oct 11, 2017 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6880740B2 | Impact enhancing device of an electric nailer | Performing Operations; Transporting | 4 | Expired |
| US9777857B2 | Flow control valve | Emerging Cross-Sectional Technologies | 2 | Active |
| US6860875B2 | Method and apparatuses of using foramen catheter needle scope to induce temporary blockade of sacral nerves | Human Necessities | 2 | Expired |
| US9226873B2 | Steam physiotherapy apparatus | Human Necessities | 1 | Active |
| US10359787B2 | Two-way flow control valve | Fixed Constructions | 1 | Active |
| USD689849S1 | Identification card apparatus | General | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.