Issued Patents All Time
Showing 76–100 of 129 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643949 | Phenyl alpha acyloxyalkanoic acids, derivatives and their therapeutic use | Ruey J. Yu | 1997-07-01 |
| 5641475 | Antiodor, antimicrobial and preservative compositions and methods of using same | Ruey J. Yu | 1997-06-24 |
| 5637615 | Method of using tropic acid for treating wrinkles | Ruey J. Yu | 1997-06-10 |
| 5621006 | Method for treating acne using benzilic acid | Ruey J. Yu | 1997-04-15 |
| 5612376 | Method of treating wrinkles using 3-phenyllactic acid | Ruey J. Yu | 1997-03-18 |
| 5599843 | Method of treating wrinkles using 2-phenyllactic acid | Ruey J. Yu | 1997-02-04 |
| 5591774 | Method of treating wrinkles using malic acid | Ruey J. Yu | 1997-01-07 |
| 5589505 | Method of treating wrinkles using quinic acid or quinolactone | Ruey J. Yu | 1996-12-31 |
| 5583156 | Method of treating wrinkles using ribonic acid or ribonolactione | Ruey J. Yu | 1996-12-10 |
| 5580902 | Method of treating wrinkles using ethyl pyranate | Ruey J. Yu | 1996-12-03 |
| 5578644 | Method of treating wrinkles using isocitric acid | Ruey J. Yu | 1996-11-26 |
| 5574067 | Method of treating wrinkles using gluconic acid or gluconolactone | Ruey J. Yu | 1996-11-12 |
| 5571837 | Method of treating wrinkles using saccharic acid or saccharolactone | Ruey J. Yu | 1996-11-05 |
| 5571841 | Method of treating wrinkles using mandelic acid | Ruey J. Yu | 1996-11-05 |
| 5565487 | Method of treating wrinkles using galactonic acid or galactonolactone | Ruey J. Yu | 1996-10-15 |
| 5561159 | Method of treating wrinkles using tropic acid | Ruey J. Yu | 1996-10-01 |
| 5561153 | Method of treating wrinkles using mucic acid or mucolactone | Ruey J. Yu | 1996-10-01 |
| 5561155 | Method of treating wrinkles using galacturonic acid or galacturonolactone | Ruey J. Yu | 1996-10-01 |
| 5561156 | Method of treating wrinkles using methyllactic acid | Ruey J. Yu | 1996-10-01 |
| 5561157 | Method for enhancing the therapeutic effect of a composition comprising hydroquinone and comprising same | Ruey J. Yu | 1996-10-01 |
| 5561158 | Compositions comprising 2-hydroxycarboxylic acids and related compounds, and methods for alleviating signs of dermatological aging | Ruey J. Yu | 1996-10-01 |
| 5556882 | Methods of treating wrinkles using benzilic acid | Ruey J. Yu | 1996-09-17 |
| 5554597 | Compositions comprising 2-hydroxycarboxylic acids and related compounds, and methods for alleviating signs of dermatological aging | Ruey J. Yu | 1996-09-10 |
| 5554654 | Method for enhancing the therapeutic effect of an anti-acne agent | Ruey J. Yu | 1996-09-10 |
| 5554652 | Method of treating wrinkles using alpha hydroxyacids, alpha ketoacids and a sunscreen agent | Ruey J. Yu | 1996-09-10 |