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Ka Wai Eric Cheng
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Hong Kong, CN
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Patents Grants
last 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
Information
Patent Grant
System for ascertaining optical characteristics of gemstone
Patent number
11,467,101
Issue date
Oct 11, 2022
GOLDWAY TECHNOLOGY LIMITED
Ka Wing Cheng
G01 - MEASURING TESTING
Information
Patent Grant
Inductive power transfer using diverted magnetic field
Patent number
10,693,321
Issue date
Jun 23, 2020
The Hong Kong Polytechnic University
Ka Wai Eric Cheng
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Power supply control
Patent number
10,211,623
Issue date
Feb 19, 2019
Eton Solutions Limited
Ka Wai Eric Cheng
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
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
FUEL CELL POWER GENERATION DEVICE
Publication number
20240088412
Publication date
Mar 14, 2024
The Hong Kong Polytechnic University
Ka Wai Eric Cheng
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ENERGY STORAGE SYSTEMS AND AMMONIA-POWERED ELECTRIC VEHICLES INCLUD...
Publication number
20230087546
Publication date
Mar 23, 2023
The Hong Kong Polytechnic University
Ka Wai Eric CHENG
B60 - VEHICLES 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
MAGNETICALLY COUPLED CHARGING SYSTEM AND THE METHOD THEREOF
Publication number
20220329173
Publication date
Oct 13, 2022
The Hong Kong Polytechnic University
Ka Wai Eric CHENG
B60 - VEHICLES IN GENERAL
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
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
SYSTEM FOR ASCERTAINING OPTICAL CHARACTERISTICS OF GEMSTONE
Publication number
20220042925
Publication date
Feb 10, 2022
GOLDWAY TECHNOLOGY LIMITED
Ka Wing CHENG
G01 - MEASURING TESTING
Information
Patent Application
NANOPARTICLE DELIVERY SYSTEM
Publication number
20220031863
Publication date
Feb 3, 2022
MASTER DYNAMIC LIMITED
Ka Wing CHENG
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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
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
Information
Patent Application
SKIN HYDRATION COMPOSITION
Publication number
20210267854
Publication date
Sep 2, 2021
MASTER DYNAMIC LIMITED
Ka Wing CHENG
B82 - NANO-TECHNOLOGY
Information
Patent Application
CANCER CELL DETECTION AND IMAGING SYSTEM, PROCESS AND PRODUCT
Publication number
20210172953
Publication date
Jun 10, 2021
MASTER DYNAMIC LIMITED
Ka Wing CHENG
G01 - MEASURING TESTING
Information
Patent Application
Inductive Power Transfer Using Diverted Magnetic Field
Publication number
20190157906
Publication date
May 23, 2019
The Hong Kong Polytechnic University
Ka Wai Eric CHENG
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
POWER SUPPLY CONTROL
Publication number
20180152015
Publication date
May 31, 2018
ETON SOLUTIONS LIMITED
Ka Wai Eric CHENG
G05 - CONTROLLING REGULATING
Information
Patent Application
Electronic circuit board
Publication number
20050263321
Publication date
Dec 1, 2005
The Hong Kong Polytechnic University
Ka Wai Eric Cheng
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR