Yau King Choy

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Tube connectors
- Patent number 7,229,230
- Issue date Jun 12, 2007
- Laudex Company Limited
- Yau King Choy
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Connector
- Patent number 4,997,304
- Issue date Mar 5, 1991
- Yau K. Choy
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Tube connectors
- Publication number 20050002732
- Publication date Jan 6, 2005
- Yau King Choy
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Connectors
- Publication number 20030053858
- Publication date Mar 20, 2003
- Yau King Choy
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...