Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11529544 | Stationary exercise apparatus | Hung-Mao Liao, Donald E. Stiemke, Darian P. Johnston | 2022-12-20 |
| 11266871 | Stair exerciser apparatus | Robert C Burck, Michael J Fidler, Alexander E Hanson, Noel R. Johnson | 2022-03-08 |