Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11311692 | Negative-pressure oral apparatus and method for maintaining negative oral pressure and collecting liquid | Chung-Chu Chen | 2022-04-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11311692 | Negative-pressure oral apparatus and method for maintaining negative oral pressure and collecting liquid | Chung-Chu Chen | 2022-04-26 |