Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6334947 | Catalyst comprising at least a hydrogenation metal component and a synthetic clay and a process of using | Mark de Boer, Eelco Titus Carel Vogt, Robertus Gerardus Leliveld, John Wilhelm Geus | 2002-01-01 |
| 6187710 | Synthetic swelling clay minerals | John Wilhelm Geus | 2001-02-13 |