Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10772399 | Hinged walking cane | Joseph Ritter, Gregory J. Foster, Robert W. Sheldon | 2020-09-15 |
| D892489 | Walking cane | Joseph Ritter, Gregory J. Foster, Robert W. Sheldon | 2020-08-11 |