CHEAH; Kok Wai
Patent Applications and Registrations
Patent applications and USPTO patent grants for CHEAH; Kok Wai.The latest application filed is for "tunable laser materials comprising solid-state blended polymers".
- CHEAH; Kok Wai - Hong Kong HK
- Cheah; Kok Wai - Symphony Bay HK
- Cheah; Kok Wai - Sai Kung Symphony Bay HK
| Patent | Date |
|---|---|
| Tunable laser materials comprising solid-state blended polymers App 20210203122 - CHEAH; Kok Wai ; et al. | 2021-07-01 |
| Sapphire thin film coated substrate Grant 11,028,471 - Cheah , et al. June 8, 2 | 2021-06-08 |
| Sapphire thin film coated flexible substrate Grant 10,941,480 - Cheah , et al. March 9, 2 | 2021-03-09 |
| Sapphire Coated Substrate With A Flexible, Anti-Scratch And Multi-Layer Coating App 20190249292 - CHEAH; Kok Wai ; et al. | 2019-08-15 |
| Sapphire Thin Film Coated Substrate App 20190242004 - CHEAH; Kok Wai ; et al. | 2019-08-08 |
| Carbon-based Nano-thin Film for Enhancing Surface Abrasion Resistance on Sapphire Thin Film App 20190169735 - CHEAH; Kok Wai ; et al. | 2019-06-06 |
| Sapphire Thin Film Coated Substrate App 20190169734 - CHEAH; Kok Wai ; et al. | 2019-06-06 |
| Sapphire thin film coated substrate Grant 10,227,689 - Cheah , et al. | 2019-03-12 |
| Nano bi-material electromagnetic spectrum shifter Grant 10,191,193 - Cheah , et al. Ja | 2019-01-29 |
| Sapphire thin film coated flexible substrate App 20180347028 - CHEAH; Kok Wai ; et al. | 2018-12-06 |
| Sapphire thin film coated flexible substrate Grant 10,072,329 - Cheah , et al. September 11, 2 | 2018-09-11 |
| Sapphire Thin Film Coated Substrate App 20180202036 - CHEAH; Kok Wai ; et al. | 2018-07-19 |
| Sapphire thin film coated substrate Grant 9,932,663 - Cheah , et al. April 3, 2 | 2018-04-03 |
| Tunable amplified spontaneous emission (ASE) laser Grant 9,923,339 - Chan , et al. March 20, 2 | 2018-03-20 |
| Sapphire Thin Film Coated Substrate App 20170260620 - CHEAH; Kok Wai ; et al. | 2017-09-14 |
| Sapphire thin film coated substrate Grant 9,695,501 - Cheah , et al. July 4, 2 | 2017-07-04 |
| Tunable Amplified Spontaneous Emission (ase) Laser App 20170163011 - Chan; Kin Long ; et al. | 2017-06-08 |
| Organic laser for measurement Grant 9,614,346 - Chan , et al. April 4, 2 | 2017-04-04 |
| Fabrication of highly flexible near-infrared metamaterials Grant 9,610,754 - Cheah , et al. April 4, 2 | 2017-04-04 |
| Nano Bi-material Electromagnetic Spectrum Shifter App 20170090082 - CHEAH; Kok Wai ; et al. | 2017-03-30 |
| Sapphire thin film coated substrate App 20160076135 - CHEAH; Kok Wai ; et al. | 2016-03-17 |
| Sapphire thin film coated flexible substrate App 20160024639 - CHEAH; Kok Wai ; et al. | 2016-01-28 |
| Highly flexible near-infrared metamaterials Grant 9,227,383 - Cheah , et al. January 5, 2 | 2016-01-05 |
| Organic Laser for Measurement App 20150292869 - CHAN; Kin Long ; et al. | 2015-10-15 |
| Highly Flexible Near-infrared Metamaterials App 20130177775 - Cheah; Kok Wai ; et al. | 2013-07-11 |
| Fabrication of Highly Flexible Near-infrared Metamaterials App 20130160936 - Cheah; Kok Wai ; et al. | 2013-06-27 |
| Silicon-based ultra-violet LED Grant 6,869,814 - Cheah , et al. March 22, 2 | 2005-03-22 |
| Silicon-based ultra-violet LED App 20040211973 - Cheah, Kok Wai ; et al. | 2004-10-28 |
| Silicon-based ultra-violet LED Grant 6,759,686 - Cheah , et al. July 6, 2 | 2004-07-06 |
| Silicon-based ultra-violet LED App 20030227031 - Cheah, Kok Wai ; et al. | 2003-12-11 |
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