Chun Hong SHAM

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Process for determining the type of a diamond
- Patent number 11,879,859
- Issue date Jan 23, 2024
- GOLDWAY TECHNOLOGY LIMITED
- Ka Wing Cheng
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR DETERMINING THE TYPE OF A DIAMOND
- Publication number 20240102951
- Publication date Mar 28, 2024
- GOLDWAY TECHNOLOGY LIMITED
- Ka Wing Cheng
- G01 - MEASURING TESTING
Information Patent Application
DIAMOND AUTHENTICATION PROCESS AND SYSTEM THEREFORE
- Publication number 20220268718
- Publication date Aug 25, 2022
- GOLDWAY TECHNOLOGY LIMITED
- Ka Wing CHENG
- G01 - MEASURING TESTING
Information Patent Application
PROCESS OF ENHANCING NITROGEN VACANCY (NV) CENTER SPIN EXCITATION I...
- Publication number 20220229138
- Publication date Jul 21, 2022
- MASTER DYNAMIC LIMITED
- Ka Wing CHENG
- G01 - MEASURING TESTING
Information Patent Application
DEVICE, PROCESS AND SYSTEM FOR GEMOLOGICAL CHARACTERIZATION
- Publication number 20210310950
- Publication date Oct 7, 2021
- GOLDWAY TECHNOLOGY LIMITED
- Juan CHENG
- G01 - MEASURING TESTING