Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6820762 | High strength rib for storage tanks | — | 2004-11-23 |
| 6698610 | Triple walled underground storage tank | John Burwell, Albert F. Dorris, John Smith | 2004-03-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6820762 | High strength rib for storage tanks | — | 2004-11-23 |
| 6698610 | Triple walled underground storage tank | John Burwell, Albert F. Dorris, John Smith | 2004-03-02 |