Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10828226 | Collapsible upright wheeled walker apparatus | Peter James Fellingham, Yichuan Pan, Nebojsa Sataric | 2020-11-10 |
| 10588815 | Collapsible upright wheeled walker apparatus | Peter James Fellingham, Yichuan Pan, Nebojsa Sataric | 2020-03-17 |
| 10555866 | Wheeled walker wheel direction lock apparatus and method | Yichuan Pan, Peter James Fellingham, Zelin Zhang, David Petersen, Scott Allen Rieger | 2020-02-11 |