Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7357752 | Power train system having creeper module | James E. Winzeler, Craig Richard Rust | 2008-04-15 |
| 6620070 | Multi-speed transmission | William L. Short | 2003-09-16 |
| 4676116 | Countershaft transmission | Willis E. Windish | 1987-06-30 |
| 4660425 | Countershaft transmission auxiliary drive mechanism | Willis E. Windish | 1987-04-28 |
| 4658673 | Planetary transmission | Willis E. Windish | 1987-04-21 |
| 4614133 | Vehicle transmission having countershaft and planetary portions | Willis E. Windish | 1986-09-30 |
| 4238020 | Centrifugal clutch with an overspeed relief valve and clutch modulation | Curtis E. Chadwick, III, Gordon W. Johnson | 1980-12-09 |