Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721283 | Vent valve construction for a storage tank, storage tank containing the same and method of making the same | — | 1988-01-26 |
| 4229024 | Swivel connector | David A. Oberrecht | 1980-10-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721283 | Vent valve construction for a storage tank, storage tank containing the same and method of making the same | — | 1988-01-26 |
| 4229024 | Swivel connector | David A. Oberrecht | 1980-10-21 |