Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10676619 | Pigment powders | Padma Kaviratna, Qingmin Cheng, Matthew Eddens, Qinyun Peng | 2020-06-09 |
| 10639247 | Pigment mixtures | Qinyun Peng | 2020-05-05 |
| 7169471 | Laser-marking additive | Shane F. Dreher, Tammy E. Link | 2007-01-30 |