Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5175374 | Process for the separation of colloidal barium phosphate or colloidal barium sodium phosphate | Rudolf Jacobus Wijngaarden, Jan Hendrik VAN SCHAIK | 1992-12-29 |
| 5162589 | Alkoxylation process catalyzed by sodium- or potassium barium phosphate | Rudolf Jacobus Wijngaarden | 1992-11-10 |