Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4841184 | Velocity and imbalance observer control circuit for active magnetic bearing or damper | Hsiang Ming Chen, Robert E. Johnson | 1989-06-20 | $322,000 |
| 4304411 | Magnetic/centrifugal-fluid seal | Donald F. Wilcock | 1981-12-08 | $167,000 |