Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879390 | Delta-butyrolactams, thereof, processes for the preparation thereof and their medical use | Yen-Rong Chen, Ming-he Yang, Geng Liu, Ulrich Benz | 1989-11-07 |
| 4826873 | 2,3-dihydroxy-3-phenyl-N-(2-phenyl-ethyl)-propionic acid amides derivatives thereof | Ming-he Yang, Yan Chen, Geng Liu | 1989-05-02 |