Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4767627 | Drug delivery device which can be retained in the stomach for a controlled period of time | Larry J. Caldwell, Colin R. Gardner | 1988-08-30 |
| 4758436 | Drug delivery device which can be retained in the stomach for a controlled period of time | Larry J. Caldwell, Colin R. Gardner, Takeru Higuchi | 1988-07-19 |
| 4735804 | Drug delivery device which can be retained in the stomach for a controlled period of time | Larry J. Caldwell, Colin R. Gardner | 1988-04-05 |