Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877774 | Administration of steroid hormones | Josef Pitha, Mitchell Harman | 1989-10-31 |
| 4869904 | Sustained release drug preparation | Yoshiyuki Tahara, Takanori Ijitsu, Tadashi Yamada | 1989-09-26 |