Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7407066 | Dosage counting devices | Tianhong Ouyang | 2008-08-05 |
| 7195134 | Dosage counting devices | Tianhong Ouyang | 2007-03-27 |
| 7191918 | Dosage counting devices | Tianhong Ouyang | 2007-03-20 |
| 6338338 | Inhalation apparatus | — | 2002-01-15 |