Juan CHENG

Person

Hong Kong, CN

People

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
HYPERPOLARISATION DEVICE, SYSTEM AND PROCESS
- Publication number 20230137188
- Publication date May 4, 2023
- MASTER DYNAMIC LIMITED
- Yau Chuen YIU
- G01 - MEASURING TESTING
Information Patent Application
PROTECTIVE MASK, AIR FILTRATION ELEMENT AND AIR TREATMENT ELEMENT
- Publication number 20230105070
- Publication date Apr 6, 2023
- MASTER DYNAMIC LIMITED
- Yau Chuen YIU
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SYSTEM AND PROCESS FOR DIAMOND AUTHENTICATION
- Publication number 20220276178
- Publication date Sep 1, 2022
- 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
GEMSTONE COLOUR GRADING PROCESS AND GRADING SYSTEM
- Publication number 20220026371
- Publication date Jan 27, 2022
- GOLDWAY TECHNOLOGY LIMITED
- Wing Yan LEE
- 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

Person

Patents Grantslast 30 patents

Process for determining the type of a diamond

Patents Applicationslast 30 patents

PROCESS FOR DETERMINING THE TYPE OF A DIAMOND

HYPERPOLARISATION DEVICE, SYSTEM AND PROCESS

PROTECTIVE MASK, AIR FILTRATION ELEMENT AND AIR TREATMENT ELEMENT

SYSTEM AND PROCESS FOR DIAMOND AUTHENTICATION

DIAMOND AUTHENTICATION PROCESS AND SYSTEM THEREFORE

PROCESS OF ENHANCING NITROGEN VACANCY (NV) CENTER SPIN EXCITATION I...

GEMSTONE COLOUR GRADING PROCESS AND GRADING SYSTEM

DEVICE, PROCESS AND SYSTEM FOR GEMOLOGICAL CHARACTERIZATION