Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5462191 | Double-walled underground storage tank | Edward B. Cannan, Jr. | 1995-10-31 |
| 5224621 | Double wall underground storage tank | Edward B. Cannan, Jr., Joseph R. Wiegand | 1993-07-06 |
| 5158201 | Storage tank having secondary containment | — | 1992-10-27 |
| 5115936 | Double wall underground storage tank | — | 1992-05-26 |
| 5024342 | Corrosion resistant containers | Barry J. Dallum | 1991-06-18 |
| 4627133 | Pultruded underground tank hold-down strap assembly | — | 1986-12-09 |