Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855421 | 2-Oxoazetidines, methods for their preparation, and their use | Ching Pong Mak | 1989-08-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855421 | 2-Oxoazetidines, methods for their preparation, and their use | Ching Pong Mak | 1989-08-08 |