Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976424 | Load control for exercise device | Mark J. Hoffenberg, Rob Reasons, Robert A. Walpert | 1990-12-11 |
| 4938475 | Bicycle racing training apparatus | Mark J. Hoffenberg, Rob Reasons, Robert A. Walpert | 1990-07-03 |
| D304963 | Bicycle exercise stand | Robert Reasons, Mark J. Hoffenberg, Robert A. Walpert, James Lindsay | 1989-12-05 |
| 4834363 | Bicycle racing training apparatus | Mark J. Hoffenberg, Rob Reasons, Robert A. Walpert | 1989-05-30 |