Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6053666 | Containment barrier panel and method of forming a containment barrier wall | John E. Irvine | 2000-04-25 |
| 6033155 | Reinforced structure panel for forming barrier walls | John E. Irvine | 2000-03-07 |
| D420154 | Reinforced structural panel for forming barrier walls | John E. Irvine | 2000-02-01 |
| 6000883 | Sheet piling extrusion | John E. Irvine | 1999-12-14 |
| 5881508 | Decking extrusion | John E. Irvine, Steve HARGRAVE | 1999-03-16 |