Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11199787 | Fluorescent metallic toners and related methods | Yu Qi, Judith M. Vandewinckel, Chunliang Lu | 2021-12-14 |
| 10495996 | Surface additive infrared taggant toner | Yu Qi, Eugene F. Young, Shigeng Li, Chieh-Min Cheng | 2019-12-03 |