Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6395242 | Production of zinc oxide from complex sulfide concentrates using chloride processing | Carole Allen, Peter Kondos, Serge Payant, Gezinus Van Weert | 2002-05-28 |
| 5089242 | Method for selectively separating a non-ferrous metal | Job Dijkhuis | 1992-02-18 |