Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5000300 | Hydraulic retarder and control | Donald Klemen, Dennis M. Cooke, J. Thomas Craig | 1991-03-19 |
| 4981198 | Hydraulic retarder and control | Donald Klemen, James P. Ordo | 1991-01-01 |
JB
John R. Bitner
Overall (All Time): #2,313,356 of 4,157,543Top 60%
2
Patents All Time