Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5439313 | Spray patching pavement repair system | James R. Blaha, Herbert N. Underwood, Ralph D. Salle | 1995-08-08 |
| 5333969 | Automated pavement repair vehicle | James R. Blaha, Herbert N. Underwood, Ralph D. Salle | 1994-08-02 |
| 4270507 | Charge forming apparatus | — | 1981-06-02 |
| 4231335 | Control system for regulating air/fuel ratio | Irving H. Hallberg, Howard C. Paul, Roy E. Hunninghaus | 1980-11-04 |