CHENG; Ka Wing
Patent Applications and Registrations
Patent applications and USPTO patent grants for CHENG; Ka Wing.The latest application filed is for "system and process for diamond authentication".
- CHENG; Ka Wing - Hong Kong CN
- Cheng; Ka Wing - Pak Shek Kok HK
- Cheng; Ka Wing - New Territories HK
| Patent | Date |
|---|---|
| Method Of Marking A Diamond, Markings Formed From Such Methods And Diamonds Marked According To Such Method App 20220274291 - YIU; Yau Chuen ; et al. | 2022-09-01 |
| System And Process For Diamond Authentication App 20220276178 - CHENG; Ka Wing ; et al. | 2022-09-01 |
| Diamond Authentication Process And System Therefore App 20220268718 - CHENG; Ka Wing ; et al. | 2022-08-25 |
| Process Of Enhancing Nitrogen Vacancy (nv) Center Spin Excitation In Hyperpolarization Application App 20220229138 - CHENG; Ka Wing ; et al. | 2022-07-21 |
| Process and system for colour grading for diamonds Grant 11,326,952 - Hui , et al. May 10, 2 | 2022-05-10 |
| System For Ascertaining Optical Characteristics Of Gemstone App 20220042925 - CHENG; Ka Wing ; et al. | 2022-02-10 |
| Nanoparticle Delivery System App 20220031863 - CHENG; Ka Wing ; et al. | 2022-02-03 |
| Diamond Clarity Measurement Process And System App 20210364446 - CHENG; Ka Wing ; et al. | 2021-11-25 |
| Process and system for diamond clarity measurement Grant 11,137,355 - Hui , et al. October 5, 2 | 2021-10-05 |
| Skin Hydration Composition App 20210267854 - CHENG; Ka Wing ; et al. | 2021-09-02 |
| Drug Formulation For Dermal Diseases App 20210268123 - CHENG; Ka Wing ; et al. | 2021-09-02 |
| Cancer Cell Detection And Imaging System, Process And Product App 20210172953 - CHENG; Ka Wing ; et al. | 2021-06-10 |
| Diamond clarity measurement process and system Grant 11,016,033 - Cheng , et al. May 25, 2 | 2021-05-25 |
| Process And System For Diamond Clarity Measurement App 20210033540 - Hui; Koon Chung ; et al. | 2021-02-04 |
| Process And System For Colour Grading For Diamonds App 20210033465 - HUI; Koon Chung ; et al. | 2021-02-04 |
| Diamond Clarity Measurement Process And System App 20200333257 - CHENG; Ka Wing ; et al. | 2020-10-22 |
| Colour grading process and system for diamonds Grant 10,762,666 - Cheng , et al. Sep | 2020-09-01 |
| Colour Grading Process And System For Diamonds App 20190213757 - CHENG; Ka Wing ; et al. | 2019-07-11 |
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