Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993516 | Sealed and pressure balanced oil lubricating system | — | 1991-02-19 |
| 4896064 | Low loss magnetic drive system | — | 1990-01-23 |
| 4396849 | Synchronous magnetic drive assembly with laminated barrier | — | 1983-08-02 |
| 4304256 | Torque transmitting assembly for rotary valve member | — | 1981-12-08 |
| 4184090 | Rotary magnetic isolation coupling | El-Sayed M. Marzouk | 1980-01-15 |