Patents Assigned to Parker Holding Services Corp.
  • Antimicrobial filtration
    Patent number: 6780332
    Abstract: A water treating system utilizes antimicrobial sand filter for killing bacteria and preventing microbial growth. Said antimicrobial sand filter consists of organic quaternary ammonium salt and inorganic metal compound.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: August 24, 2004
    Assignee: Parker Holding Services Corp.
    Inventors: Yen-Kuen Shiau, Chung-Hsun Wu, Vincent T Chuang
  • Method for preservation of produce
    Patent number: 6733806
    Abstract: A method and product for preserving produce including plants comprising storing the produce and plant in a container incorporated with a spinel AB2O4 and resin mixture which emits a radiation of 3-18 and 3-30 micron wave length.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: May 11, 2004
    Assignee: Parker Holding-Services Corp.
    Inventors: Yen-Kuen Shiau, Chung-Hsun Wu
  • Antimicrobial filtration
    Patent number: 6715618
    Abstract: A water treating system utilizes antimicrobial sand filter for killing bacteria and preventing microbial growth. Said antimicrobial sand filter consists of organic quaternary ammonium salt and inorganic metal compound.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: April 6, 2004
    Assignee: Parker Holding Services Corp.
    Inventors: Yen-Kuen Shiau, Chung-Hsun Wu, Vincent T Chuang
  • Therapeutic pad and a method for treatment of common illnesses
    Patent number: 6605291
    Abstract: A therapeutic pad comprises a spinel powder having the formula of AB2O4 which emits 3-18 or 3-30 micron wave length depending the composition of the spinel for treatment of pain. A novel method for treatment of pain by placing the said pad with the spinel powder over the painful area.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: August 12, 2003
    Assignee: Parker Holding Services Corp.
    Inventors: Yen-Kuen Shiau, Chung-Hsun Wu
  • Antimicrobial composition supported on a honeycomb shaped substrate
    Patent number: 6423350
    Abstract: An inorganic antimicrobial composition has the formula AB2O4, wherein A and B are low temperature far infrared irradiating metals, A is Mg, Zn, Mn, Ni, Co, or Fe(II), B is Al, Cr(III), Mn(III) or Fe(III), and O is oxygen. An antimicrobial article is made by coating said composition on a porous honeycomb-shaped substrate. An organic antimicrobial article is made from a quaternary ammonium salt coated on a porous honeycomb-shaped substrate. Processes of making the antimicrobial articles are provided.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: July 23, 2002
    Assignee: Parker Holding Services Corp.
    Inventors: Yen-Kuen Shiau, Chung-Hsun Wu
  • Antimicrobial composition supported on a honeycomb-shaped substrate
    Patent number: 6051246
    Abstract: An inorganic anticmirobial composition has the the formula AB.sub.2 O.sub.4 wherein A and B are low temperature far infrared irradiating metals, A is Mg, Zn, Mn, Ni, Co, or Fe(II), B is Al, Cr(III), Mn(III) or Fe(III), and O is oxygen. An antimicrobial article is made by coating said composition on a porous honeycomb-shaped substrate. An organic antimicrobal article is made from a quarternary ammonium salt coated on a porous honeycomb-shaped substrate. Processes of making the antimicrobial articles are provided.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: April 18, 2000
    Assignee: Parker Holding Services Corp.
    Inventors: Yen-Kuen Shiau, Chung-Hsun Wu