Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835961 | Fluid dynamic pump | Walter M. Presz, Jr., Robert W. Paterson | 1989-06-06 |
| 4830315 | Airfoil-shaped body | Walter M. Presz, Jr., Robert W. Paterson | 1989-05-16 |
| 4815531 | Heat transfer enhancing device | Walter M. Presz, Jr., Robert W. Paterson | 1989-03-28 |
| 4813633 | Airfoil trailing edge | Walter M. Presz, Jr., Robert W. Paterson | 1989-03-21 |
| 4813635 | Projectile with reduced base drag | Robert W. Paterson, Walter M. Presz, Jr. | 1989-03-21 |