Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882441 | Lower-alkyl or aryl-sulfonyl unsaturated tacopherols | David L. Coffen, Rudolf Schmid | 1989-11-21 |
| 4879395 | Vitamin E intermediate | David L. Coffen, Rudolf Schmid | 1989-11-07 |
| 4853472 | Vitamin E intermediates | David L. Coffen, Rudolf Schmid | 1989-08-01 |