Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8029959 | Charge control agent and toner comprising the same | Zhilin Xia, Shuangquan ZHU | 2011-10-04 |
| 7943688 | Charge control agent and toner comprising the same | Delian Yi, Shunquan ZHU | 2011-05-17 |