Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5104616 | Method for production of master alloys for grain refining treatment of aluminum melts | Lennart Backerud, Rein Kiusalaas, Hans Klang, Jan Noordegraaf, Edward H. K. Nagelvoort | 1992-04-14 |
| 5045110 | Aluminium-strontium master alloy | Jan Noordegraaf, Edward H. Klein Nagelvoort, Jan P. Mulder | 1991-09-03 |