Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6375923 | Processing titaniferous ore to titanium dioxide pigment | Willem P. C. Duyvesteyn, Bruce J. Sabacky, Dirk Verhulst, Paul George West-Sells, Timothy Spitler +2 more | 2002-04-23 |
| 6074558 | Biochemical treatment of bitumen froth tailings | Willem P. C. Duyvesteyn, Julia R. Budden | 2000-06-13 |