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last 30 patents
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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 Applications
last 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
METHODS AND APPARATUS FOR AN ANTI-COUNTERFEITING SYSTEM USING COLOR...
Publication number
20230168205
Publication date
Jun 1, 2023
The University of Hong Kong
Zhiqin Chu
G01 - MEASURING TESTING
Information
Patent Application
IMAGING PROCESS AND SYSTEM
Publication number
20230168238
Publication date
Jun 1, 2023
MASTER DYNAMIC LIMITED
Yau Chuen YIU
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
METHOD OF MARKING A SOLID-STATE MATERIAL, MARKINGS FORMED FROM SUCH...
Publication number
20220355416
Publication date
Nov 10, 2022
MASTER DYNAMIC LIMITED
Yau Chuen YIU
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF MARKING A DIAMOND, MARKINGS FORMED FROM SUCH METHODS AND...
Publication number
20220274291
Publication date
Sep 1, 2022
MASTER DYNAMIC LIMITED
Yau Chuen YIU
B28 - WORKING CEMENT, CLAY, OR STONE
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