Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9765229 | Ink composition and a writing instrument | Ling-Ling Cheng, Yong Sang | 2017-09-19 |
| 9546179 | Heterocycle amido alkyloxy substituted quinazoline derivative and use thereof | — | 2017-01-17 |