Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4950324 | Tri-level method and apparatus for post melting treatment of molten steel | Charles W. Finkl, Bruce C. Liimatainen | 1990-08-21 |
| 4894087 | Simplified method and apparatus for treating molten steel | Charles W. Finkl, Bruce C. Liimatainen | 1990-01-16 |
| 4541862 | Ladle steelmaking method and apparatus | Charles W. Finkl, Albert L. Lehman | 1985-09-17 |