Kei Hang Ting

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Air cleaning and filtering system
- Patent number 7,655,080
- Issue date Feb 2, 2010
- Kei Hang Ting
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Air Cleaning and Filtering System
- Publication number 20070186777
- Publication date Aug 16, 2007
- Kei Hang Ting
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE