Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848774 | Reactor coolant pump hydrostatic sealing assembly with externally pressurized hydraulic balance chamber | Richard F. Guardiani | 1989-07-18 |
| 4838559 | Reactor coolant pump hydrostatic sealing assembly with improved hydraulic balance | Richard F. Guardiani | 1989-06-13 |