Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824811 | Concentrate of triterpenes | Jan Fritsche, Ulrike Schmid, Erik Schweitzer | 2004-11-30 |
| 5239097 | Process for refining soap-containing crude polyol fatty-acid polyester reaction products | Frederik D. Barkey Wolf, Bart Barmentlo, Anton R. Immerseel, Arend Zwanenburg | 1993-08-24 |