Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5310249 | Method and apparatus for automatically controlling a mining machine | David B. Sugden, John Barrie Turner, Thomas M. Hartman, Gerald L. Dollinger, John Greer Moore | 1994-05-10 |
| 5234257 | Mobile mining machine having tilted swing axis and method | David B. Sugden, John Turner | 1993-08-10 |
| 5205612 | Transport apparatus and method of forming same | David B. Sugden, John Barrie Turner, Thomas M. Hartman, Gerald L. Dollinger, John Greer Moore | 1993-04-27 |
| 4286604 | Smoking materials | Jacques Ehretsmann, Robert D. Cowling, Alfred D. Schweizer, William Matthew Caldwell, Dennis Boyd | 1981-09-01 |