Wai Yuen Cheung

Person

Hong Kong, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Chemical sensing device
- Patent number 11,933,753
- Issue date Mar 19, 2024
- Wan Lung Kam
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Cloud door lock control system with identification of time varied 2...
- Patent number 11,804,091
- Issue date Oct 31, 2023
- Wai Kin Cheung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cloud door lock control system with identification of time varied 2...
- Patent number 11,783,649
- Issue date Oct 10, 2023
- Wai Kin Cheung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus for delivering semiconductor components to a substrate
- Patent number 8,590,143
- Issue date Nov 26, 2013
- ASM Technology Singapore Pte. Ltd.
- Kui Kam Lam
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Automatic level adjustment for die bonder
- Patent number 8,293,043
- Issue date Oct 23, 2012
- ASM Assembly Automation LTD
- Kwok Kee Chung
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
CLOUD DOOR LOCK CONTROL SYSTEM WITH IDENTIFICATION OF TIME VARIED 2...
- Publication number 20230260346
- Publication date Aug 17, 2023
- Wai Kin Cheung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
CLOUD DOOR LOCK CONTROL SYSTEM WITH IDENTIFICATION OF TIME VARIED 2...
- Publication number 20230062621
- Publication date Mar 2, 2023
- Wai Kin Cheung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SENSING MATERIAL FOR HIGH SENSITIVITY AND SELECTIVITY
- Publication number 20220120706
- Publication date Apr 21, 2022
- QI SENSOR TECHNOLOGIES LIMITED
- Han JIN
- G01 - MEASURING TESTING
Information Patent Application
CHEMICAL SENSING DEVICE
- Publication number 20210239639
- Publication date Aug 5, 2021
- QI DIAGNOSTICS LIMITED
- Wan Lung KAM
- G01 - MEASURING TESTING
Information Patent Application
GAS-BASED METHOD AND DEVICE FOR DIAGNOSING LUNG CANCER USING LIGHT-...
- Publication number 20200355644
- Publication date Nov 12, 2020
- QI DIAGNOSTICS LIMITED
- Han JIN
- G01 - MEASURING TESTING
Information Patent Application
MgS Solar-Blind UV Radiation Detector
- Publication number 20120306042
- Publication date Dec 6, 2012
- The Hong Kong University of Science and Technology
- Iam Keong SOU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
APPARATUS FOR DELIVERING SEMICONDUCTOR COMPONENTS TO A SUBSTRATE DU...
- Publication number 20120301251
- Publication date Nov 29, 2012
- ASM Technology Singapore Pte Ltd
- Kui Kam LAM
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
STORAGE UNIT WITH COUPLING MECHANISM
- Publication number 20110233206
- Publication date Sep 29, 2011
- Esselte Corporation
- Cheng Chi Yeung
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
Remote automatic setting of clock radio
- Publication number 20110051560
- Publication date Mar 3, 2011
- Kam Kwong Allen Wong
- G04 - HOROLOGY
Information Patent Application
Audio transmission system
- Publication number 20100177902
- Publication date Jul 15, 2010
- KING SUM CHU
- Allen Kam Kwong Wong
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUTOMATIC LEVEL ADJUSTMENT FOR DIE BONDER
- Publication number 20080017293
- Publication date Jan 24, 2008
- Kwok Kee Chung
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Apparatus and method for die attachment
- Publication number 20050186019
- Publication date Aug 25, 2005
- ASM Assembly Automation Ltd
- Deming Liu
- H01 - BASIC ELECTRIC ELEMENTS

Wai Yuen Cheung

Person

Patents Grantslast 30 patents

Chemical sensing device

Cloud door lock control system with identification of time varied 2...

Cloud door lock control system with identification of time varied 2...

Apparatus for delivering semiconductor components to a substrate

Automatic level adjustment for die bonder

Patents Applicationslast 30 patents

CLOUD DOOR LOCK CONTROL SYSTEM WITH IDENTIFICATION OF TIME VARIED 2...

CLOUD DOOR LOCK CONTROL SYSTEM WITH IDENTIFICATION OF TIME VARIED 2...

SENSING MATERIAL FOR HIGH SENSITIVITY AND SELECTIVITY

CHEMICAL SENSING DEVICE

GAS-BASED METHOD AND DEVICE FOR DIAGNOSING LUNG CANCER USING LIGHT-...

MgS Solar-Blind UV Radiation Detector

APPARATUS FOR DELIVERING SEMICONDUCTOR COMPONENTS TO A SUBSTRATE DU...

STORAGE UNIT WITH COUPLING MECHANISM

Remote automatic setting of clock radio

Audio transmission system

AUTOMATIC LEVEL ADJUSTMENT FOR DIE BONDER

Apparatus and method for die attachment