Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357023 | Ferrofluid rotary-shaft seal apparatus and method | — | 1982-11-02 |
| 4340233 | Ferrofluid seal apparatus | Kuldip Raj | 1982-07-20 |
| 4312628 | Turbomolecular vacuum pump having virtually zero power magnetic bearing assembly with single axis servo control | — | 1982-01-26 |