Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6904371 | Method and apparatus for measuring rotor unbalance | H. Eric Sonnichsen | 2005-06-07 |
| 6679121 | Blade vibration test apparatus and method | H. Eric Sonnichsen, Paul Wawrzonek, Richard B. Connell | 2004-01-20 |
| 6456945 | Detecting anomalies in rotating components | H. Eric Sonnichsen | 2002-09-24 |
| 6098022 | Detecting anomalies in rotating components | H. Eric Sonnichsen | 2000-08-01 |