Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234790 | Refractory wall structure | Jacobus Van Laar, Gerardus Gleijm, Hisko Leon Toxopeus | 2001-05-22 |
| 5639293 | Method and apparatus for production of iron from iron compounds | Johannes G. Bernard, Hendrikus Koenraad Albertus Meijer | 1997-06-17 |
| 5567225 | Method of making pig iron with zinc recovery | Johannes G. Bernard, Hendrikus Koenraad Albertus Meijer | 1996-10-22 |