Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6216763 | Cast node and method for casting nodes | Phillip C. Ruehl | 2001-04-17 |
| 5573222 | Method of manufacturing engine cradles | Phillip C. Ruehl, Richard J. Behrmann | 1996-11-12 |
| 5487219 | Method of manufacturing engine cradles | Phillip C. Ruehl, Richard J. Behrmann | 1996-01-30 |
| 5409254 | Rear suspension with aligned coil springs and twist beam axle | Thomas O. Minor, Michael Erickson | 1995-04-25 |
| 4512665 | Adjustable over-the-top agitator for a liquid manure tank | Kevin W. Cline | 1985-04-23 |
| 4416549 | Apparatus for agitating and pumping a liquid slurry | — | 1983-11-22 |
| 4402648 | Chopper pump | — | 1983-09-06 |