Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5983751 | Single gear train bicycle drive mechanism | — | 1999-11-16 |
| 5183449 | Die cast system for control of stair climbing exercise device | — | 1993-02-02 |
| 5026046 | Adjustable auxiliary hydraulic fluid accumulator control for hydraulically-phased stair climbing exercise apparatus | — | 1991-06-25 |
| 4986532 | Hand rail for stand-up exercise equipment | — | 1991-01-22 |
| 4919416 | Dual facing aerobic exercise machine | — | 1990-04-24 |
| 4685669 | Descent speed control for exercise stair | — | 1987-08-11 |
| 4685666 | Climbing simulation exercise device | — | 1987-08-11 |
| 4681316 | Phasing system for exercise stair | — | 1987-07-21 |
| 4519603 | Exercise device | — | 1985-05-28 |
| 4496147 | Exercise stair device | Herbert H. Loeffler, James S. MacConkey, E. Hubbard Yonkers | 1985-01-29 |
| 4477072 | Bimodal exercise device | — | 1984-10-16 |