Kwok Chiu Yu

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Flush valve assembly and toilet flush system incorporating the same
- Patent number 9,932,728
- Issue date Apr 3, 2018
- DEFOND HOLDINGS (H.K.) CO. LIMITED
- Kwok Chiu Yu
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Toilet apparatus
- Patent number 9,663,933
- Issue date May 30, 2017
- DEFOND HOLDINGS (H. K.) CO. LIMITED
- Kai Chi Chan
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Liquid-operated actuator assembly, particularly for a flush toilet,...
- Patent number 9,228,334
- Issue date Jan 5, 2016
- DEFOND COMPONENTS LIMITED
- Kwok Chiu Yu
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
TOILET APPARATUS
- Publication number 20160333561
- Publication date Nov 17, 2016
- DEFOND COMPONENTS LIMITED
- Kai Chi Chan
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
FLUSH VALVE ASSEMBLY AND TOILET FLUSH SYSTEM INCORPORATING THE SAME
- Publication number 20160208471
- Publication date Jul 21, 2016
- DEFOND COMPONENTS LIMITED
- Kwok Chiu Yu
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
FLUID-OPERATED ACTUATOR ASSEMBLY
- Publication number 20130152293
- Publication date Jun 20, 2013
- DEFOND COMPONENTS LIMITED
- Kwok Chiu YU
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
LIQUID-OPERATED ACTUATOR ASSEMBLY
- Publication number 20130152292
- Publication date Jun 20, 2013
- DEFOND COMPONENTS LIMITED
- Kwok Chiu Yu
- E03 - WATER SUPPLY SEWERAGE