Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7921533 | Refractory protected replaceable insert | John D. Winter | 2011-04-12 |
| 7141085 | Refractory protected replaceable insert | John D. Winter | 2006-11-28 |
| D472481 | Protective cap for a thermocouple in a gasifier | — | 2003-04-01 |
| 6439137 | Self-anchoring expansion gap assembly for a gasifier | Donald Duane Brooker | 2002-08-27 |