Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865334 | Long-life multi-stage ferrofluid seals incorporating a ferrofluid reservoir | James Bonvouloir, Ronald Moskowitz, Frank Bloom | 1989-09-12 |
| 4830384 | Compact long-life magnetic fluid seal | Ronald Moskowitz | 1989-05-16 |
| 4824122 | Compact magnetic fluid low pressure seal | Ronald Moskowitz | 1989-04-25 |
| 4797013 | Compact ferrofluidic electrically conducting sealed bearing | Hanumaiah L. Gowda, Ronald Moskowitz | 1989-01-10 |