Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8387753 | Ergonomic extendable/retractable ladder | Mitchell I. Kieffer, Craig S. Aizman, Bruce A. Hillukka, Wayne A. Shakal | 2013-03-05 |
| 5732411 | Adjustable guard for the lower leg and shin | W. Carl Coleman, Diana J. Merritt | 1998-03-31 |
| 4494247 | Knee/elbow guard treated to increase durability and a process for producing same | — | 1985-01-22 |
| 4344189 | Limb protector for athletes | Albert L. Futere | 1982-08-17 |
| 4198708 | Elbow/knee guard | Albert L. Fugere | 1980-04-22 |