Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10555866 | Wheeled walker wheel direction lock apparatus and method | Yichuan Pan, Peter James Fellingham, Zelin Zhang, David A. Purcell, David Petersen | 2020-02-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10555866 | Wheeled walker wheel direction lock apparatus and method | Yichuan Pan, Peter James Fellingham, Zelin Zhang, David A. Purcell, David Petersen | 2020-02-11 |