Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642834 | Secondary containment reservoir device | Mark D. Shaw, J. Tad Heyman, Jesse Ehredt | 1997-07-01 |
| 5636753 | Stabilizer for plural drum stacks | Dennis Wilkinson, Mark D. Shaw, J. Tad Heyman | 1997-06-10 |
| 5615608 | Reinforced containment pallet | Mark D. Shaw, J. Tad Heyman, Jesse Ehredt | 1997-04-01 |