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Kyoung-Ryeol Baek
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Chungcheongnam-do, KR
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Patents Grants
last 30 patents
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Patent Grant
Air diffusion device
Patent number
9,567,246
Issue date
Feb 14, 2017
ANT21 Co., Ltd
Myung Han Ko
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Multi-disc air diffuser
Patent number
8,833,743
Issue date
Sep 16, 2014
ANT21 Co., Ltd
Myung-Han Ko
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Patents Applications
last 30 patents
Information
Patent Application
AIR DIFFUSION DEVICE
Publication number
20150246835
Publication date
Sep 3, 2015
ANT21 CO., LTD.
Myung Han Ko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
MULTI-DISC AIR DIFFUSER
Publication number
20110304063
Publication date
Dec 15, 2011
ANT21 CO., LTD.
Myung-Han Ko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL