Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462001 | Complex esters, formulations comprising these esters and use thereof | Dirk Kenbeek, Cornelis Verboom | 2002-10-08 |
| 5314634 | Polyester viscosity index improver | Dirk Kenbeek, Ramires R. Poulina | 1994-05-24 |