Issued Patents All Time
Showing 126–129 of 129 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224339 | Treatment of disturbed keratinization | Ruey J. Yu | 1980-09-23 |
| 4216224 | Methods and compositions for treating psoriasis with retinoyl compounds | Ruey J. Yu | 1980-08-05 |
| 4197316 | Treatment of dry skin | Ruey J. Yu | 1980-04-08 |
| 4194007 | .alpha.-Hydroxyretinoic acid, .alpha.-ketoretinoic acid and mixtures and their use in treating skin conditions | Ruey J. Yu | 1980-03-18 |