Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5058864 | Method of manufacture of pig iron using hollow tube to reseal tap role | Rienk M. Nijholt | 1991-10-22 |
| 5020992 | Shaft furnace | Joseph Adrianus Maria Van Der Hoeff | 1991-06-04 |
| 4915183 | Weighing apparatus for measuring the weight of a load | Johannes VERMEIJ | 1990-04-10 |
| 4510793 | Method of monitoring the wear of a refractory lining of a metallurgical furnace wall | Hendrikus T. Ploegaert, Johannes A. M. Butter | 1985-04-16 |