Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9037272 | Auto-tuning electro-hydraulic valve | QingHui Yuan, Christy William Schottler, Wade Leo Gehlhoff | 2015-05-19 |
| 8527073 | Auto-tuning electro-hydraulic valve | QingHui Yuan, Chris W. Schottler, Wade Leo Gehlhoff | 2013-09-03 |
| 8239069 | Auto-tuning electro-hydraulic valve | QingHui Yuan, Chris W. Schottler, Wade Leo Gehlhoff | 2012-08-07 |