Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10133306 | Mounting devices | — | 2018-11-20 |
| 9863546 | Air admittance valve preventing mephitis overflow | Chao-Chi Chen | 2018-01-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10133306 | Mounting devices | — | 2018-11-20 |
| 9863546 | Air admittance valve preventing mephitis overflow | Chao-Chi Chen | 2018-01-09 |