Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9511558 | Method for collecting and removing refuse from an underground mine | Mark Colombo, Darrell Ross | 2016-12-06 |
| 7349881 | Computer borrow and loan securities auction system | — | 2008-03-25 |
| 4916867 | Drill bit sharpener | — | 1990-04-17 |
| 4862652 | Building panels | — | 1989-09-05 |
| 4776139 | Building panels | — | 1988-10-11 |
| 4672780 | Building panels | — | 1987-06-16 |
| 4658549 | Drill bit sharpening device | — | 1987-04-21 |