| Application date | Registration number | Content |
|---|---|---|
| 2019.12.30 | 10-2009-0133660 | Small-scale water system for valley water or groundwater treatment using ultra filter |
| 2018.05.30 | 10-2018-0061535 | Method and apparatus for preparing PFSA ionomer dispersion |
| 2016.01.27 | PCT/KR2014/006084 | High-strength separator and its manufacturing method |
| 2015.08.20 | 10-2015-0117466 | Microgrid seawater desalination system integrated and linked with renewable energy |
| 2014.10.31 | 10-2014-0150162 | Polar membrane with nanopore and method for manufacturing same |
| 2014.05.01 | 10-2014-0053084 | Method for manufacturing high strength polyvinylidene fluoride hollow fiber separator |
| 2014.03.25 | 10-2014-0034909 | Functional depth filter manufacturing apparatus and method |
| 2013.11.08 | 10-201-30135600 | Multi-layered filter that is easy to replace |
| 2013.08.28 | 10-2013-0102722 | Metal processing oil wastewater treatment method |
| 2013.07.16 | 10-2013-0083295 | High-strength separator and manufacturing method |
| 2012.07.10 | 10-2012-0075245 | Treatment method of emulsified oil wastewater that can be reused as industrial water |
| 2012.04.25 | 10-2012-0043175 | Wastewater effluent reuse membrane filtration and concentrated water treatment method |
| 2012.03.09 | 10-2012-0024677 | Hollow fiber membrane module |
| 2011.11.25 | 10-2011-0124492 | Filtration membrane cleaning device and cleaning method |
| 2011.11.18 | 10-2011-0120810 | Membrane and system protection field of mobile water treatment system |
| 2011.10.21 | 10-2011-0108142 | Heavy water reuse device using external circulation membrane and rainwater |
| 2011.06.23 | 10-2011-0061072 | Industrial wastewater effluent reuse device and reuse method using tubular MF membrane and RO membrane |
| 2011.03.29 | 10-2012-0032184 | Manufacturing method of microporous filter material |
| 2011.03.08 | 10-2011-0020291 | Manufacturing method of polyacrylonitrile-based sponge-type hollow fiber membrane |
| 2011.01.26 | 10-2011-0007989 | Advanced water purification device and method |
| 2010.11.12 | 10-2010-0112741 | Hydrofluoric acid wastewater treatment system and treatment method using membrane |
| 2010.08.24 | 10-2010-0082024 | Wafer processing wastewater treatment device and treatment method |
| 2010.10.18 | 10-2010-0101232 | Phosphorus removal system and phosphorus removal method for sewage and wastewater |
| 2010.10.01 | 10-2010-0095960 | Sewage and wastewater effluent T-N, T-P, chromaticity removal reuse system and membrane cleaning system using membrane |
| 2010.06.29 | 10-2010-0062082 | Reuse device of waste caustic soda generated during textile processing |
| 2010.01.27 | 10-2010-0007227 | Water purifier |
| 2009.12.30 | 10-2009-0133661 | Small-scale water supply facility device for valley water or groundwater treatment using reverse osmosis membrane |
| 2009.12.30 | 10-2009-0133662 | Functional compost and liquid manure manufacturing device using livestock manure |
| 2019.12.30 | 10-2009-0133660 | Small-scale water system for valley water or groundwater treatment using ultra filter |
| 2009.09.30 | 10-2009-0092977 | Water treatment plant using hollow fiber membrane |
| 2008.05.15 | 10-2008-0044998 | A device that separates/extracts oxygen and nitrogen from air |
| 2005.07.27 | 10-2005-0068117 | Manufacturing method of ultra-permeable polyamide nanocomposite membrane |
| 2005.07.19 | 10-2005-0065140 | Oxygen water production apparatus and method |
| 2004.09.08 | 10-2004-0071651 | Polyvinylidene fluoride-based porous hollow fiber membrane and its manufacturing method |