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last 30 patents
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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
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
Information
Patent Application
DRUG FORMULATION FOR DERMAL DISEASES
Publication number
20210268123
Publication date
Sep 2, 2021
MASTER DYNAMIC LIMITED
Ka Wing CHENG
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE