Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6427610 | High temperature industrial furnace roof structure | Stephen Coates | 2002-08-06 |
| 5558691 | Cullet feeder | Larry L. Horn, William L. Merkle, William R. Materna, Stephen Coates | 1996-09-24 |
| 5542804 | Modular solids charger | Frank P. Merkle, Larry L. Horn, William L. Merkle | 1996-08-06 |
| 5357540 | High temperature industrial furnace roof structure | Frank P. Merkle, Larry L. Horn | 1994-10-18 |
| 5238347 | In situ replaceable pusher bar for a batch charger pan | — | 1993-08-24 |
| 4638617 | Refractory curtain wall | — | 1987-01-27 |
| 4463689 | High temperature furnace nose construction | — | 1984-08-07 |