Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8617037 | Overspeed trainer system | William M. Dieter, Polly James | 2013-12-31 |
| 8007419 | Overspeed trainer system | William M. Dieter, Polly James | 2011-08-30 |
| 7699761 | Overspeed trainer system | William M. Dieter, Polly James | 2010-04-20 |