Hyoung Kyoun Ahn

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Seoul, KR

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Patents Grantslast 30 patents

Information Patent Grant
Spiral wound type filter cartridge
- Patent number 8,506,807
- Issue date Aug 13, 2013
- Woongjincoway Co., Ltd.
- Sun-Yong Lee
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Caster device
- Patent number 7,992,254
- Issue date Aug 9, 2011
- Medison Co., Ltd.
- Hyoung Kyoun Ahn
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Polyamide reverse osmosis composite membrane and preparation method...
- Patent number 7,766,173
- Issue date Aug 3, 2010
- Woongjincoway Co., Ltd.
- Moo-Kyung Moon
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
SPIRAL WOUND TYPE FILTER CARTRIDGE
- Publication number 20130299410
- Publication date Nov 14, 2013
- COWAY CO., LTD.
- Sun-Yong LEE
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SPIRAL WOUND TYPE FILTER CARTRIDGE
- Publication number 20110062076
- Publication date Mar 17, 2011
- WOONGJINCOWAY CO., LTD.
- Sun-Yong Lee
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
CASTER DEVICE
- Publication number 20100122430
- Publication date May 20, 2010
- Medison Co., Ltd.
- Hyoung Kyoun Ahn
- B60 - VEHICLES IN GENERAL
Information Patent Application
Polyamide Reverse Osmosis Composite Membrane and Preparation Method...
- Publication number 20080237118
- Publication date Oct 2, 2008
- Moo-Kyung Moon
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...