Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10921738 | Error proof device for toner cartridge and toner cartridge using the same | — | 2021-02-16 |
| 8306463 | Toner cartridge with rotator and sliding cover for toner leakage reduction | Ren-Hao Liu, Ming-Tsung Shih | 2012-11-06 |