Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10632403 | Multicage-type apparatus for filtering ballast water for automatically controlling simultaneous reverse cleaning and method for same | Soo-Tae Lee, Su-Kyu Lee | 2020-04-28 |
| 9993753 | High-efficiency candle-type device for filtering ballast water having high-density filter structure | Soo-Tae Lee, Su-Kyu Lee | 2018-06-12 |
| 9776112 | Candle-type filtering device for preventing back pressure | Soo-Tae Lee, Su-Kyu Lee | 2017-10-03 |
| 9550557 | Multicage-type device for filtering ballast water so as to prevent back pressure on backwash line | Soo-Tae Lee, Su-Kyu Lee | 2017-01-24 |
| 9545588 | Compact and operability-enhancing multicage-type device for filtering ballast water | Soo-Tae Lee, Su-Kyu Lee | 2017-01-17 |
| 9321657 | Apparatus for treating ballast water with ultraviolet rays, having double wiper structure | Soo-Tae Lee, Su-Kyu Lee | 2016-04-26 |
| 9272925 | Apparatus for treating ballast water with ultraviolet rays, having square cross-section | Soo-Tae Lee, Su-Kyu Lee | 2016-03-01 |
| 8980103 | Ballast water treatment system having a back-pressure formation part and control method thereof | Soo-Tae Lee, Sang-Gyu Cheon | 2015-03-17 |
| 8821720 | Filtering apparatus for treating ballast water | Soo-Tae Lee, Su-Kyu Lee | 2014-09-02 |
| 8501004 | Ballast water treatment device | Soo-Tae Lee, Sang-Gyu Cheon, Hyun Oh Kim, Su-Kyu Lee | 2013-08-06 |
| 8502165 | Ultraviolet sterilizer having watertight function | Soo-Tae Lee, Su-Kyu Lee | 2013-08-06 |
| 8410453 | Ultraviolet sterilizer having vibration-proof function | Soo-Tae Lee, Su-Kyu Lee | 2013-04-02 |