Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4576572 | Apparatus and method for cleaning contaminated soil | Paul L. Jensen | 1986-03-18 |
| 4518350 | Apparatus and method for calcining sand | Paul L. Jensen | 1985-05-21 |
| 4278383 | Bag opening and emptying apparatus | Michael K. Harrod, Frederick C. Hagemeister | 1981-07-14 |
| 4274787 | Bag opening and emptying apparatus | Michael K. Harrod | 1981-06-23 |