Patents by Inventor Sunghak Hwang

Sunghak Hwang 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).

  • Air filter having antimicrobial property
    Patent number: 7942957
    Abstract: The present invention relates to an antimicrobial composition having antibacterial and antifungal properties and to an air filter manufactured using the composition. The filter of the present invention, comprising a filtration media treated with the antimicrobial composition having antibacterial and antifungal properties, has excellent antibacterial and antifungal properties, and thus can prevent the bacteria and fungi filtered by the filter from propagating in the filter.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: May 17, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Jun Seok Lee, Sunghak Hwang, Seongju Kim
  • Air Filter Having Antimicrobial Property
    Publication number: 20080317802
    Abstract: The present invention relates to an antimicrobial composition having antibacterial and antifungal properties and to an air filter manufactured using the composition. The filter of the present invention, comprising a filtration media treated with the antimicrobial composition having antibacterial and antifungal properties, has excellent antibacterial and antifungal properties, and thus can prevent the bacteria and fungi filtered by the filter from propagating in the filter.
    Type: Application
    Filed: January 24, 2007
    Publication date: December 25, 2008
    Inventors: Jun Seok Lee, Sunghak Hwang, Seongju Kim