Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5249140 | Electrohydraulic distributed control system with identical master and slave controllers | — | 1993-09-28 |
| 5135031 | Power transmission | Roy T. Burgess, Rajamouli Gunda, Frank Herta, Robert C. Hodges, Richard S. Leemhuis +2 more | 1992-08-04 |
| 5073091 | Power transmission | Roy T. Burgess, Rajamouli Gunda, Frank Herta, Robert C. Hodges, Richard S. Leemhuis +2 more | 1991-12-17 |
| 4917213 | Power transmission | Gerald A. Gyomory | 1990-04-17 |
| 4757747 | Power transmission | Albert Blatter, Jeffrey P Cherry, Ronald E. Chipp, Richard S. Leemhuis, John A. Miller +2 more | 1988-07-19 |
| 4276600 | Oxygen sensor feedback loop digital electronic signal integrator for internal combustion engine control | Thomas W. Hartford | 1981-06-30 |
| 4245314 | Oxygen sensor qualifier | Robert S. Henrich, Thomas W. Hartford | 1981-01-13 |