Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12366299 | Hydraulic check valve utilizing an ortho-planar spring | Adam J. Kellerson | 2025-07-22 |
| 9057441 | Shift system for power transmitting device | Duane M. Golden | 2015-06-16 |
| 8578804 | Synchronized gear shift system | Duane M. Golden | 2013-11-12 |
| 6067870 | Manual transaxle | K. K. Natarajan, Robert S. Hatton, Alan P. Zajac, David W. Wenthen, Lee B. Arnold | 2000-05-30 |