Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4406917 | Insulator for electrical heating element assembly | — | 1983-09-27 |
| 4322606 | Electrical heating element assembly | — | 1982-03-30 |
| 4273493 | Rotary furnace volumetric feeder with sealed chute | Louis J. Rumbolo, Ernest E. Fazekas, Frank Korzeb | 1981-06-16 |
| 4259060 | Discharge end structure for rotary retorts | Frank Korzeb | 1981-03-31 |