Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362442 | Venturi barge unloading system | Wayne Jacobson | 1982-12-07 |
| 4264243 | Constant vacuum barge unloading system | — | 1981-04-28 |
| 4195954 | Mechanical aerator for suction nozzle | Robert Hallett | 1980-04-01 |