Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11073482 | Multi-functional precious stone testing apparatus and method thereof | Gary Bruce Peckham | 2021-07-27 |
| 10983262 | Rotational geometric phase hologram with application for fabricating geometric phase optical element | Ming Wai Alwin Tam, Kin Lung Chan | 2021-04-20 |