Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697168 | Indirect heating screw conveyor | Philippe Matthys, Robert A. Shelden, Felix G. Marcelino, Michael Katko | 1997-12-16 |
| 4201129 | Machine for charging furnaces | — | 1980-05-06 |