Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4986222 | Furnace for oil refineries and petrochemical plants | Frank W. Pickell, John Z. Varesic, M. Shannon Melton | 1991-01-22 |
| 4835831 | Method of providing a refractory covering to a furnace wall | — | 1989-06-06 |