Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4544154 | Passive programmable resistance device | — | 1985-10-01 |
| 4354676 | Exerciser | — | 1982-10-19 |
| 4256302 | Variable resistance exercising device | Dennis L. Keiser | 1981-03-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4544154 | Passive programmable resistance device | — | 1985-10-01 |
| 4354676 | Exerciser | — | 1982-10-19 |
| 4256302 | Variable resistance exercising device | Dennis L. Keiser | 1981-03-17 |