Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7947327 | Method for increasing metal production in smelter operations | Gert-Jan Oude Egberick, Donald Carroll Roe | 2011-05-24 |
| 4592537 | Apparatus for heat treating and sizing thin walled articles | George D. Pfaffmann | 1986-06-03 |
| 4419149 | Method for quenching heated workpieces | — | 1983-12-06 |
| 4336924 | Apparatus for quenching heated workpieces | — | 1982-06-29 |