Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10429762 | Method and device of image forming to reduce waste developer | — | 2019-10-01 |
| 10423121 | Developing cartridge, processing cartridge, and image forming apparatus | Haifei Gong, Chengjie Su | 2019-09-24 |