Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6277055 | Flexibly coordinated stationary exercise device | James S. Birrell, Thomas H. Moran | 2001-08-21 |
| 5129872 | Exercise apparatus | Cole Dalton, Lawrence J. Graf | 1992-07-14 |
| 4770411 | Exercise apparatus ergometer | Timothy O. Armstrong, Larry J. Graf | 1988-09-13 |
| D283530 | Exercise rowing machine | David Smith | 1986-04-22 |