Sean Chen

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Taichung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Water-proof and dust-proof membrane assembly and applications thereof
- Patent number 10,099,182
- Issue date Oct 16, 2018
- EF-MATERIALS INDUSTRIES INC.
- James Huang
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polymeric electret film and method of manufacturing the same
- Patent number 8,530,004
- Issue date Sep 10, 2013
- EF-Materials Industries Inc.
- James Huang
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents

Information Patent Application
WATER-PROOF AND DUST-PROOF MEMBRANE ASSEMBLY AND APPARATUS USING TH...
- Publication number 20160354997
- Publication date Dec 8, 2016
- EF-MATERIALS INDUSTRIES INC.
- James Huang
- B32 - LAYERED PRODUCTS
Information Patent Application
WATER-PROOF AND DUST-PROOF MEMBRANE ASSEMBLY AND APPARATUS USING TH...
- Publication number 20130083528
- Publication date Apr 4, 2013
- EF-Materials Industries Inc.
- James HUANG
- B32 - LAYERED PRODUCTS
Information Patent Application
WATER-PROOF AND DUST-PROOF MEMBRANE ASSEMBLY AND APPLICATIONS THEREOF
- Publication number 20110188247
- Publication date Aug 4, 2011
- James HUANG
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Polymeric Electret Film and Method of Manufacturing the Same
- Publication number 20110186437
- Publication date Aug 4, 2011
- James Huang
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR