Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344229 | Angle and velocity adjustment of a hot mix asphalt drum when output gas temperatures are uneven | Robert H. Nath, John Wiley, Robert Erickson, Carl R. Hutchison | 1994-09-06 |
| 5322367 | Process control for recycled asphalt pavement drum plant | Robert H. Nath, John Wiley, Robert Erickson, Carl R. Hutchinson | 1994-06-21 |
| 5303999 | Apparatus for control of recycled asphalt production | Robert H. Nath, John Wiley, Robert Erickson, Carl R. Hutchison | 1994-04-19 |