Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9886517 | Ranking product information | Jinghua Feng | 2018-02-06 |
| 9863546 | Air admittance valve preventing mephitis overflow | Michael Chiang | 2018-01-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9886517 | Ranking product information | Jinghua Feng | 2018-02-06 |
| 9863546 | Air admittance valve preventing mephitis overflow | Michael Chiang | 2018-01-09 |