Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11686373 | Multi-speed transmission | — | 2023-06-27 |
| 11359701 | Multi-speed transmission | — | 2022-06-14 |
| 11035440 | Multi-speed transmission | — | 2021-06-15 |
| 8256600 | Torque-transmitting mechanism having a compact piston and spring assembly | William S. Reed, Douglas S. Burchett | 2012-09-04 |
| 5685406 | Park brake actuating mechanism for a power transmission | Bruce E. Crum, Michael Toole, Thomas Lynn Bishop | 1997-11-11 |
| 4766777 | Interrupted thread lock mechanism for an engine-transmission assembly | James F. Hartz, Glenn W. Adamson | 1988-08-30 |
| 4711328 | Hydrodynamic retarder with a centrifugal accumulator | James F. Hartz, Anthony R. Uliana | 1987-12-08 |
| 4687071 | Mounting for track laying vehicle transmission | James F. Hartz, Michael R. Ferguson | 1987-08-18 |