Issued Patents 2020
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D902791 | Wheeled walker | Craig Timothy Shugert, Yichuan Pan | 2020-11-24 |
| 10828226 | Collapsible upright wheeled walker apparatus | Yichuan Pan, David A. Purcell, Nebojsa Sataric | 2020-11-10 |
| 10617592 | Wheeled walker | Yichuan Pan | 2020-04-14 |
| 10588815 | Collapsible upright wheeled walker apparatus | Yichuan Pan, David A. Purcell, Nebojsa Sataric | 2020-03-17 |
| 10555866 | Wheeled walker wheel direction lock apparatus and method | Yichuan Pan, Zelin Zhang, David A. Purcell, David Petersen, Scott Allen Rieger | 2020-02-11 |
| D874351 | Wheeled walker | Zelin Zhang, Yichuan Pan, Craig Timothy Shugert | 2020-02-04 |