Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6173779 | Collapsible well perforating apparatus | — | 2001-01-16 |
| 6098231 | Pipeline pigs | Peter Couchman, Brian Kenneth Campbell Jones | 2000-08-08 |
| 5074408 | Bearing assembly for conveyors | Carmin C. Simerly, Jim E. Hilty, Mark S. Byerley | 1991-12-24 |
| 5046869 | Conveyor bearing assembly | Clark A. Roberts | 1991-09-10 |
| 5025917 | Bearing assembly for conveyors | Carmin C. Simerly, Jim E. Hilty, Mark S. Byerley | 1991-06-25 |
| 4712946 | Assembly and installation of pipes | Cyril B. Greatorex, Graham J. Hammersley | 1987-12-15 |
| 4671033 | Suspended ceilings | — | 1987-06-09 |
| 4646500 | Ceiling panel | — | 1987-03-03 |
| 4309270 | Flash pyrolysis of agglomerating coal | Ralph J. Tyler, James H. Edwards | 1982-01-05 |