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Patent applications and USPTO patent grants for Oh; Chul-Ki.The latest application filed is for "biological removal method of phosphorus and nitrogen using granulated methan-oxidizing bacteria and apparatus therefor".
Patent | Date |
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Apparatus for biological removal of phosphorus and nitrogen using granulated methane-oxidizing bacteria Grant 7,604,733 - Kim , et al. October 20, 2 | 2009-10-20 |
Biological Removal Method Of Phosphorus And Nitrogen Using Granulated Methan-oxidizing Bacteria And Apparatus Therefor App 20090173679 - Kim; Kwang-soo ;   et al. | 2009-07-09 |
Biological method for removing phosphorus and nitrogen from water using granulated methane-oxidizing bacteria Grant 7,520,991 - Kim , et al. April 21, 2 | 2009-04-21 |
Biological removal method of phosphorus and nitrogen using granulated methan-oxidizing bacteria and apparatus therefor App 20070284305 - Kim; Kwang-Soo ;   et al. | 2007-12-13 |
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