Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10258918 | Apparatus to purify fresh air using biodegradable filter | Cheong Tong Benjamin Shum | 2019-04-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10258918 | Apparatus to purify fresh air using biodegradable filter | Cheong Tong Benjamin Shum | 2019-04-16 |