Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689022 | Preparation of .beta.-carotene products with a high 9 (Z) content | Michael Sasha John | 1997-11-18 |
| 5654444 | Preparation of 5-hydroxy-4-methyl-2(5H)-furanone | Michael Sasha John, Walter Dobler | 1997-08-05 |
| 5654488 | Preparation of astaxanthin | Wolfgang Krause, Klaus Henrich, Hansgeorg Ernst | 1997-08-05 |
| 5625099 | Preparation of astaxanthin, novel intermediates therefor and the preparation thereof | Hansgeorg Ernst, Walter Dobler, Udo Rheude | 1997-04-29 |