Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6094029 | Integral power pack and recharger | Andrew E. Reynolds, Kenneth L. Coffman, Thomas P. Dillon, Claudiu Bulai | 2000-07-25 |
| 6034505 | Rechargeable charging cradle and night light | David S. Nierescher | 2000-03-07 |
| 5254059 | Exercise apparatus | Paul T. Dunham, Lawrence J. Graf, William C. Henderson | 1993-10-19 |
| D328625 | Climbing exerciser | David J. Littrell, Lawrence J. Graf, James S. Birrell | 1992-08-11 |