Patents by Inventor Jin-Seong Yoon

Jin-Seong Yoon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for anion removal by forming chemical precipitation under an electric field and continuous process for anion removal
    Patent number: 6811704
    Abstract: The present disclosure relates to a method for removing anions such as nitrate ion, sulfate ion, chloride ion, and phosphate ion existing in underground water, surface water or waste water. The method involves adding alumina cement and a calcium compound to the water containing the anion followed by applying an electric field thereto, thereby forming a chemical precipitate which is an insoluble complex salt. The disclosure also relates to a continuous process for removing the anion by continuously performing the above method for removing anions.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: November 2, 2004
    Assignee: Korea Institute of Science and Technology
    Inventors: Young-Sang Cho, Jae-Ik Kim, Jae-Chun Oh, Jin-Seong Yoon
  • Method for anion removal by forming chemical precipitation under an electric field and continuous process for anion removal
    Publication number: 20030121861
    Abstract: A method for removing anions such as nitrate ion, sulfate ion, chloride ion, and phosphate ion existed in underground water, surface water or waste water, comprising adding alumina cement and a calcium compound into the water containing the anion and followed by applying an electric field thereto, thereby to thereby to form a chemical precipitation which is an insoluble complex salt, and a continuous process for removing the anion by continuously performing the above method for removing anions.
    Type: Application
    Filed: October 22, 2002
    Publication date: July 3, 2003
    Applicant: Korea Institute of Science and Technology
    Inventors: Young-Sang Cho, Jae-Ik Kim, Jae-Chun Oh, Jin-Seong Yoon