Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7595416 | Phosphoric acid esters and their use as wetting and dispersing agent | Frank Oliver Heinrich Pirrung, Arend Noordam, Petrus Johannes Harbers, Arona Eliane Munneke | 2009-09-29 |
| 7173084 | Levelling agent and anti-cratering agent | Frank Oliver Heinrich Pirrung, Lothar Alexander Engelbrecht, Arend Noordam | 2007-02-06 |