Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032171 | Aluminum scrap recovery by inductively moving molten metal | Thomas J. Robare, Robert A. Gutknecht, J. Richard Semk | 1991-07-16 |
| 4491475 | Constant rate briquette feeding system | Chester L. Zuber, Virgil T. Butrum, Manford E. Rydholm | 1985-01-01 |
| 4286985 | Vortex melting system | Jan H. L. van Linden | 1981-09-01 |