Byong-Cheol Kwon

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Daejeon, KR

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Patents Grantslast 30 patents

Information 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 Applicationslast 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