Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462001 | Complex esters, formulations comprising these esters and use thereof | Cornelis Verboom, Gijsbert Van der Waal | 2002-10-08 |
| 6346504 | Lubricant | Eric Appelman, Hendrik Leendert Rieffe | 2002-02-12 |
| 6008167 | Lubricant | Eric Appelman, Hendrik Leendert Rieffe | 1999-12-28 |
| 5314634 | Polyester viscosity index improver | Ramires R. Poulina, Gijsbert Van der Waal | 1994-05-24 |