Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923081 | Storage tanks with fabricated support ribs | Joseph R. Wiegand, Dewey C. Stickley | 1990-05-08 |
| 4778075 | Rib form for tank ribs | Joseph R. Wiegand | 1988-10-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923081 | Storage tanks with fabricated support ribs | Joseph R. Wiegand, Dewey C. Stickley | 1990-05-08 |
| 4778075 | Rib form for tank ribs | Joseph R. Wiegand | 1988-10-18 |