Chi Ho Hung

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Multilayer nanofiber filter
- Patent number 9,138,669
- Issue date Sep 22, 2015
- AVALON NANOFIBER LIMITED
- Wallace Woon-Fong Leung
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Multilayer nanofiber filter
- Patent number 8,523,971
- Issue date Sep 3, 2013
- The Hong Kong Polytechnic University
- Wallace Woon-Fong Leung
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
MULTILAYER NANOFIBER FILTER
- Publication number 20140044756
- Publication date Feb 13, 2014
- The Hong Kong Polytechnic University
- Wallace Woon-Fong Leung
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
MULTILAYER NANOFIBER FILTER
- Publication number 20100307119
- Publication date Dec 9, 2010
- Wallace Woon-Fong Leung
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL