Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11713503 | Sapphire coated substrate with a flexible, anti-scratch and multi-layer coating | Kok Wai Cheah, Wing Yui Lam, Yu Wai Chan, Shing Chi Ricky Tse, Suet Ying Ching | 2023-08-01 |
| 11535926 | Sapphire thin film coated substrate | Kok Wai Cheah, Wing Yui Lam | 2022-12-27 |
| 10941480 | Sapphire thin film coated flexible substrate | Kok Wai Cheah, King Fai Li, Guixin Li, Wing Yui Lam, Yu Wai Chan | 2021-03-09 |
| 10227689 | Sapphire thin film coated substrate | Kok Wai Cheah, Wing Yui Lam | 2019-03-12 |
| 10072329 | Sapphire thin film coated flexible substrate | Kok Wai Cheah, King Fai Li, Ka Suen Lee, Guixin Li, Wing Yui Lam +1 more | 2018-09-11 |
| 9932663 | Sapphire thin film coated substrate | Kok Wai Cheah, Wing Yui Lam | 2018-04-03 |
| 9695501 | Sapphire thin film coated substrate | Kok Wai Cheah, King Fai Li, Wing Yui Lam, Ka Suen Lee | 2017-07-04 |
| 6869814 | Silicon-based ultra-violet LED | Kok Wai Cheah, Wai Kwok Wong | 2005-03-22 |
| 6759686 | Silicon-based ultra-violet LED | Kok Wai Cheah, Wai Kwok Wong | 2004-07-06 |