Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9803099 | Carbon black for waterborne coatings | Lang H. Nguyen, Qingling Zhang | 2017-10-31 |
| 8927648 | Surface modification of pigments and compositions comprising the same | Qingling Zhang | 2015-01-06 |