Patents by Inventor Hyeungrak Kim

Hyeungrak Kim 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).

  • Delta-aminolevulinic acid for prevention and treatment of infection by pathogenic microorganisms and parasite
    Patent number: 6986908
    Abstract: The present invention relates to a composition containing a ?-aminolevulinic acid as effective dose for prevention and treatment of infection by pathogenic microorganisms and parasite. More particularly, it refers to the composition for prevention and treatment through cultivation of fish in a water tank containing ?-aminolevulinic acid or the oral administration of a feed mixed with ?-aminolevulinic acid to fish.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: January 17, 2006
    Inventors: Hyeungrak Kim, Jaeho Kim, Myungjoo Oh, Daeseok Byun
  • Delta-aminolevulinic acid for prevention and treatment of infection microorganisms and parasite
    Publication number: 20010053796
    Abstract: The present invention relates to a composition containing a &dgr;-aminolevulinic acid as effective dose for prevention and treatment of infection by pathogenic microorganisms and parasite. More particularly, it refers to the composition for prevention and treatment through cultivation of fish in a water tank containing &dgr;-aminolevulinic acid or the oral administration of a feed mixed with &dgr;-aminolevulinic acid to fish.
    Type: Application
    Filed: February 27, 2001
    Publication date: December 20, 2001
    Inventors: Hyeungrak Kim, Jaeho Kim, Myungjoo Oh, Daesoek Byun