Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795725 | Method for the manufacture of refractory bricks containing CaO | Christiaan M. J. M. Beelen, Adam Steen, Hendrik M. Verhoog, Jurrie De Boer | 1989-01-03 |
| 4747985 | Method for the manufacture of a magnesia-carbon brick | Christian M. J. M. Beelen, Adam Steen, Hendrik M. Verhoog, Jurrie De Boer | 1988-05-31 |