Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646258 | Method of synthesizing alkyl glucosides | Burghard Gruning, Manfred Recksik, Eckhard Weidner, Zhengfeng Zhang | 1997-07-08 |
| 5597602 | Process for de-oiling crude lecithin | Bernd Czech, Eckard Weidner, Zhenfeng Zhang | 1997-01-28 |