Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494707 | Limited recycle for primary controls | Richard Simons, Henry E. Troost | 2002-12-17 |
| 6478574 | Pump purge for oil primary | Richard Simons, Henry E. Troost | 2002-11-12 |
| 6413078 | Restricted operating modes for oil primary | Richard Simons, Henry E. Troost | 2002-07-02 |