Chi Yin Yeung

Person

Hong Kong, HK

People

Patents Grantslast 30 patents

Information Patent Grant
Method for detecting electronic lighting flickering
- Patent number 10,027,857
- Issue date Jul 17, 2018
- Gean Technology Co. Limited
- Shan Mei Wan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for detecting electronic lighting flickering
- Patent number 9,584,704
- Issue date Feb 28, 2017
- Gean Technology Co. Limited
- Shan Mei Wan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coin-operated gumball machine
- Patent number 8,960,492
- Issue date Feb 24, 2015
- Sweet N Fun Ltd.
- Chi Yin Yeung
- G07 - CHECKING-DEVICES
Information Patent Grant
System for processing electronic devices
- Patent number 7,190,446
- Issue date Mar 13, 2007
- ASM Assembly Automation LTD
- Chi Wah Cheng
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Environmentally-Friendly Street Light with Multi-stage Gear Drive U...
- Publication number 20190368674
- Publication date Dec 5, 2019
- Chi Wan YEUNG
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Application
SEALED BLOOD COLLECTION DEVICE FOR CLINICAL BLOOD TESTING
- Publication number 20190133508
- Publication date May 9, 2019
- Chi Wai Yeung
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
METHOD FOR DETECTING ELECTRONIC LIGHTING FLICKERING
- Publication number 20170048444
- Publication date Feb 16, 2017
- Gean Technology Co. Limited
- Shan Mei Wan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LIGHT BULB WITH LED SYMBOLS
- Publication number 20160238199
- Publication date Aug 18, 2016
- Gean Technology Co. Limited
- Chi Keung Yeung
- F21 - LIGHTING
Information Patent Application
METHOD FOR DETECTING ELECTRONIC LIGHTING FLICKERING
- Publication number 20160205290
- Publication date Jul 14, 2016
- Gean Technology Co. Limited
- Shan Mei Wan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Coin-Operated gumball machine
- Publication number 20120298687
- Publication date Nov 29, 2012
- Chi Yin Yeung
- G07 - CHECKING-DEVICES
Information Patent Application
SYSTEM FOR CONTROLLING GAS SUPPLY TO A GAS BURNER OF A PATIO HEATER
- Publication number 20090023105
- Publication date Jan 22, 2009
- Chiaphua Winport International Ltd.
- Chi Man Yeung
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Chi Yin Yeung

Person

Patents Grantslast 30 patents

Method for detecting electronic lighting flickering

Method for detecting electronic lighting flickering

Coin-operated gumball machine

System for processing electronic devices

Patents Applicationslast 30 patents

Environmentally-Friendly Street Light with Multi-stage Gear Drive U...

SEALED BLOOD COLLECTION DEVICE FOR CLINICAL BLOOD TESTING

METHOD FOR DETECTING ELECTRONIC LIGHTING FLICKERING

LIGHT BULB WITH LED SYMBOLS

METHOD FOR DETECTING ELECTRONIC LIGHTING FLICKERING

Coin-Operated gumball machine

SYSTEM FOR CONTROLLING GAS SUPPLY TO A GAS BURNER OF A PATIO HEATER