Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679804 | Preparation of phosphonic esters | Klaus Ditrich | 1997-10-21 |
| 5654488 | Preparation of astaxanthin | Klaus Henrich, Joachim Paust, Hansgeorg Ernst | 1997-08-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679804 | Preparation of phosphonic esters | Klaus Ditrich | 1997-10-21 |
| 5654488 | Preparation of astaxanthin | Klaus Henrich, Joachim Paust, Hansgeorg Ernst | 1997-08-05 |