Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032143 | Method and apparatus for treating process gases | — | 1991-07-16 |
| 5029556 | Method of recovering heat from hot process gases | Rolf E. Malmstrom | 1991-07-09 |
| 4192490 | Lance for injecting powdery material into molten metal | Per Nilsson, Gunnar B. Harryson, Leif Larsson, Karl J. Poderschan, Theo Lehner | 1980-03-11 |