Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7674940 | Process for the preparation of detergent compounds | Robert Martijn Van Hardeveld, Arend Hoek, Peter W. Lednor, Joannes Ignatius Geijsel | 2010-03-09 |
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Henk Dirkzwager
Overall (All Time): #3,281,149 of 4,157,543Top 80%
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Patents All Time