Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6409108 | Damage-resistant deflector vane | Rickey E. Wark | 2002-06-25 |
| 6260490 | Burner isolation valve for pulverized fuel systems | Rickey E. Wark | 2001-07-17 |
| 6234090 | Linear diffuser for balancing coal flow | Rickey E. Wark | 2001-05-22 |
| 6186079 | Linear diffuser for balancing coal flow | Rickey E. Wark | 2001-02-13 |
| 6004097 | Coal mill exhauster fan | Rickey E. Wark | 1999-12-21 |
| 5957300 | Classifier vane for coal mills | Rickey E. Wark | 1999-09-28 |
| 5819947 | Classifier cage for rotating mill pulverizers | Rickey E. Wark | 1998-10-13 |