Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980114 | Thrust bearing | — | 1999-11-09 |
| 5951169 | Thrust bearing | Robert A. Oklejas | 1999-09-14 |
| 5106262 | Idler disk | Robert A. Oklejas | 1992-04-21 |
| 5082428 | Centrifugal pump | Robert A. Oklejas | 1992-01-21 |
| 5049045 | Power recovery turbine pump | Robert A. Oklejas | 1991-09-17 |
| 4983305 | Power recovery pump turbine | Robert A. Oklejas | 1991-01-08 |
| 4966708 | Power recovery pump turbine | Robert A. Oklejas | 1990-10-30 |
| 4830572 | Idler disk | Robert A. Oklejas | 1989-05-16 |
| 4255081 | Centrifugal pump | Robert A. Oklejas | 1981-03-10 |