Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8272668 | Composite wall structure, tank trailer formed therefrom and method of manufacturing same | Donald J. Keehan | 2012-09-25 |
| 8016322 | Composite wall structure, tank trailer formed therefrom and method of manufacturing same | Donald J. Keehan | 2011-09-13 |