Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7458156 | Spool valve assembly apparatus using air vortex insertion | Orrin P. Beggs, Jeffery Wayne Berg | 2008-12-02 |
| 5829134 | Spool valve loading method and apparatus | Robert W. Wednieski | 1998-11-03 |