Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10492577 | Hinged walking cane | Joseph Ritter, Gregory J. Foster, Robert W. Sheldon | 2019-12-03 |
| D861320 | Walking cane | Joseph Ritter, Gregory J. Foster, Robert W. Sheldon | 2019-10-01 |
| D860627 | Hinged walking cane | Joseph Ritter, Gregory J. Foster, Robert W. Sheldon | 2019-09-24 |