Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876369 | Process for synthesizing chromanes | Richard Barner | 1989-10-24 |
| 4851585 | Vitamin E intermediates | Richard Barner | 1989-07-25 |
| 4824972 | Hydroquinone derivatives | Richard Barner | 1989-04-25 |
| 4808736 | Process for the preparation of hydroquinone derivatives and d-.alpha.-tocopherol | Richard Barner | 1989-02-28 |