Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7143968 | Mobile rock crushing plant | James D. Brock, Gary Heeszel, Lawrence Olsen, Robert Carnes | 2006-12-05 |
| 6935587 | Mobile rock crushing plant | James D. Brock, Gary Heeszel, Lawrence Olsen, Robert Carnes | 2005-08-30 |