Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6929393 | Asphalt production plant | J. Donald Brock, R. Ronald Collins, Michael E. Barrett, Thomas Scott Cloninger, M. Earl Edwards, Jr. | 2005-08-16 |
| 6581780 | Automatic gradation unit | Michael E. Barrett, Gary Heeszel, David F. Peaks | 2003-06-24 |
| 6575303 | Processing a product including aggregate materials and a volatile component | J. Donald Brock, Michael E. Barrett, R. Ronald Collins, Gary Heeszel, David F. Peaks | 2003-06-10 |
| 6467201 | Trench-cutting machine with cutting head lock mechanism | Chris McSharry | 2002-10-22 |
| 6123279 | Rock crusher having crushing-enhancing inserts, method for its production, and method for its use | Robert G. Stafford, J. Don Brock, William R. Gray | 2000-09-26 |
| 5967431 | Rock crusher having crushing-enhancing inserts, method for its production, and method for its use | Robert G. Stafford, J. Don Brock, William R. Gray | 1999-10-19 |
| 5916504 | Method for forming a test specimen from a mixture of asphalt concrete | M. Earl Edwards, Jr. | 1999-06-29 |
| 5732896 | Anti-spin mechanism for gyratory crusher | James C. Bremer | 1998-03-31 |
| 5659140 | Testing machine for pavement samples | M. Earl Edwards, Jr. | 1997-08-19 |
| 5078540 | Asphalt pavement milling machine and cutter drum therefor | Thomas R. Campbell | 1992-01-07 |
| 4946307 | Asphalt pavement recycling apparatus | — | 1990-08-07 |
| 4193636 | Asphalt paving planer with conveyor forwardly of cutting drum | — | 1980-03-18 |