Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10434031 | Wheeled walker with a moveable seat | Yichuan Pan, Zelin Zhang, Craig Timothy Shugert, David Petersen | 2019-10-08 |
| 10322056 | Collapsible upright wheeled walker apparatus | Yichuan Pan, David A. Purcell, Nebojsa Sataric | 2019-06-18 |
| 10307321 | Wheeled walker with a movable seat | Yichuan Pan, Zelin Zhang, Craig Timothy Shugert, David Petersen | 2019-06-04 |