Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10773196 | Gluing method of a filter cartridge | Zhen-Kun ZHAN | 2020-09-15 |
| 10569199 | Filter frame, filter cartridge, and assembling method of the filter cartridge | — | 2020-02-25 |
| 10537832 | Filter frame, filter cartridge, and assembling method of the filter cartridge | — | 2020-01-21 |