Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5271677 | Method for eliminating whirl instability in a gas supported bearing | Randy J. Sherman, August O. Weilbach, Derald F. Hanson | 1993-12-21 |
| 5181783 | Apparatus for eliminating whirl instability in a gas supported bearing | Randy J. Sherman, August O. Weilbach, Derald F. Hanson | 1993-01-26 |
| 5019738 | Self-pressurizing gas supported surface-roughness bearing | August O. Weilbach, Derald F. Hanson | 1991-05-28 |