Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10414196 | Optical security device having hidden images and methods of making the same | Yingqiu Jiang | 2019-09-17 |
| 10353287 | Methods of producing multicolor images in a single layer of cholesteric liquid crystal polymer | Yingqiu Jiang | 2019-07-16 |