Hoipo Yu

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Lai Chikok, HK

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Patents Grantslast 30 patents

Information Patent Grant
Brush head and its producing device
- Patent number 10,201,222
- Issue date Feb 12, 2019
- Hoipo Yu
- A46 - BRUSHWARE

Patents Applicationslast 30 patents

Information Patent Application
Brush Head and Its Producing Device
- Publication number 20160022026
- Publication date Jan 28, 2016
- Hoipo YU
- A46 - BRUSHWARE
Information Patent Application
Brush head and its producing device
- Publication number 20110232016
- Publication date Sep 29, 2011
- Hoipo Yu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL