Hon Hung Joseph Chan

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Baby monitor system with multiple audio feature
- Patent number 11,804,120
- Issue date Oct 31, 2023
- Merit Zone Limited
- Kelvin Ka Fai Chan
- G08 - SIGNALLING
Information Patent Grant
Automatic distress alarming method and its system
- Patent number 9,654,951
- Issue date May 16, 2017
- Lai Ming Wu
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
BABY MONITOR SYSTEM WITH MULTIPLE AUDIO FEATURE
- Publication number 20220238000
- Publication date Jul 28, 2022
- Merit Zone Limited
- Kelvin Ka Fai CHAN
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
SOFT-SWITCHING BIDIRECTIONAL PHASE-SHIFT CONVERTER WITH EXTENDED LO...
- Publication number 20170324347
- Publication date Nov 9, 2017
- Hong Kong Productivity Council
- Wenzheng XU
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Automatic distress alarming method and its system
- Publication number 20170013431
- Publication date Jan 12, 2017
- Lai Ming Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MOTOR FOR HAIR GROOMING APPARATUS
- Publication number 20130200823
- Publication date Aug 8, 2013
- CONAIR CORPORATION
- Hon Hung Joseph Chan
- B26 - HAND CUTTING TOOLS CUTTING SEVERING