Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11397390 | Toner refill cartridge with a spiral portion to move a plunger | Sanghoon Lee | 2022-07-26 |
| 11353807 | Toner cartridge movable to detachment direction by reverse rotation of coupler | Seungchan Park, Youngchae Kim | 2022-06-07 |