Issued Patents 2020
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D886388 | Welding mask | Dandan Tang | 2020-06-02 |
| D885678 | Welding mask | Dandan Tang | 2020-05-26 |
| D885679 | Welding mask | Dandan Tang | 2020-05-26 |
| D885680 | Welding mask | Dandan Tang | 2020-05-26 |
| D885681 | Welding mask | Dandan Tang | 2020-05-26 |
| D885682 | Welding mask | Dandan Tang | 2020-05-26 |