Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7467943 | Method for combusting fuel in a fired heater | Donald F. Zetik, Sr., Dan Loveless, Frank W. Pickell, John Z. Varesic, John Brinly +1 more | 2008-12-23 |
| 5078857 | Delayed coking and heater therefor | — | 1992-01-07 |
| 4986222 | Furnace for oil refineries and petrochemical plants | Frank W. Pickell, John Z. Varesic, Sidney H. Melton | 1991-01-22 |