Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8881925 | Protective steel membrane system and method of erection for secondary containment for an above ground storage tank | Michael Crabb | 2014-11-11 |
| 7946439 | Protective steel membrane system and method of erection for secondary containment for an above ground storage tank | Michael Crabb | 2011-05-24 |