You-Mee Na

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Patents Grantslast 30 patents

Information Patent Grant
Continuous circulation sand filter and continuous circulation sand...
- Patent number 9,567,241
- Issue date Feb 14, 2017
- COWAY ENTECH CO., LTD
- Youn-Kook Kim
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
CONTINUOUS CIRCULATION SAND FILTER AND CONTINUOUS CIRCULATION SAND...
- Publication number 20140190908
- Publication date Jul 10, 2014
- COWAY CO., LTD.
- Youn-Kook Kim
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL