Patents Assigned to HANDUK INTERNATIONAL CO., LTD
  • Natural zeolite block for improving water quality and method for manufacturing same
    Patent number: 11524273
    Abstract: A natural zeolite block for improving water quality that is capable of being built in rivers, streams, and reservoirs having point and non-point pollutant sources to purify the water polluted by pollutants, to remove the eutrophication in the water to prevent the occurrence of green and red tides, and to consistently purify heavy metals and all kinds of harmful substances flowing into the water and to a method for manufacturing the same.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: December 13, 2022
    Assignee: HANDUK INTERNATIONAL CO., LTD
    Inventor: Jeong Kwon Yang