Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5439313 | Spray patching pavement repair system | Herbert N. Underwood, Ralph D. Salle, Ronald R. Ralston | 1995-08-08 |
| 5333969 | Automated pavement repair vehicle | Herbert N. Underwood, Ralph D. Salle, Ronald R. Ralston | 1994-08-02 |
| 4877940 | Using infrared imaging to monitor and control welding | Edmund R. Bangs, Nicholas E. Longinow | 1989-10-31 |