Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861513 | Preparation of specifically adjusted polyalcohol mixtures based on sorbitol | Hans-Josef Ratajczak, Ekkehard Wienhoefer | 1989-08-29 |
| 4847368 | Method of manufacturing alkyloligoglycosides | Peter Hofmann | 1989-07-11 |
| 4820814 | Process for producing colorless butyloligoglycosides | — | 1989-04-11 |