Patents by Inventor Hsing-Hui Yu

Hsing-Hui Yu 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).

  • Stainless plumber's putty
    Patent number: 8986438
    Abstract: A stainless putty composition is provided that includes a liquid portion including vegetable oil, and a solids portion. The solids portion includes one or more of a filler and polymeric plasticizer. The stainless putty composition is essentially free of hydrocarbons.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: March 24, 2015
    Assignee: Oatey Co.
    Inventors: Wayne A. Merrifield, Hsing Hui Yu
  • STAINLESS PLUMBER'S PUTTY
    Publication number: 20130213262
    Abstract: A stainless putty composition is provided that includes a liquid portion including vegetable oil, and a solids portion. The solids portion includes one or more of a filler and polymeric plasticizer. The stainless putty composition is essentially free of hydrocarbons.
    Type: Application
    Filed: February 20, 2012
    Publication date: August 22, 2013
    Applicant: OATEY COMPANY
    Inventors: Wayne A. Merrifield, Hsing Hui Yu
  • Method and Composition for Clearing Sewer Lines of Roots Utilizing Herbicides and Bacteria
    Publication number: 20100069245
    Abstract: A foaming root destroyer is provided that utilizes a combination of herbicides and bacteria to inhibit and destroy the roots and fine root hairs intruding into underground discharge waste pipe systems. Furthermore, the foaming root destroyer can work over a longer period of time providing an enzymatic process to degrade and eliminate the dead root mass in the sewer line.
    Type: Application
    Filed: November 24, 2009
    Publication date: March 18, 2010
    Inventors: Fred Richard Scholer, Hsing-Hui Yu, Raj Mehta
  • Colorless primer composition and method
    Patent number: 7648603
    Abstract: A primer formulated with a colorless dye detectable only under black light is provided. The present invention is non-detectable on a porous surface and color does not appear over time upon exposure to natural or synthetic lights. Under black light, sometimes referred to as ultra violet energy or long wave black light, the colorless dye appears as purple. However, once the black light is removed, the primer ceases to glow and returns to its natural, colorless state.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: January 19, 2010
    Assignee: Hercules Chemical Company Incorporated
    Inventors: Fred Richard Scholer, Hsing-Hui Yu, Wayne A. Merrifield
  • METHOD AND COMPOSITION FOR CLEARING SEWER LINES OF ROOTS UTILIZING HERBICIDES AND BACTERIA
    Publication number: 20080287297
    Abstract: A foaming root destroyer is provided that utilizes a combination of herbicides and bacteria to inhibit and destroy the roots and fine root hairs intruding into underground discharge waste pipe systems. Furthermore, the foaming root destroyer can work over a longer period of time providing an enzymatic process to degrade and eliminate the dead root mass in the sewer line.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 20, 2008
    Inventors: Fred Richard Scholer, Hsing-Hui Yu, Raj Mehta
  • Colorless primer composition and method
    Publication number: 20080029213
    Abstract: A primer formulated with a colorless dye detectable only under black light is provided. The present invention is non-detectable on a porous surface and color does not appear over time upon exposure to natural or synthetic lights. Under black light, sometimes referred to as ultra violet energy or long wave black light, the colorless dye appears as purple. However, once the black light is removed, the primer ceases to glow and returns to its natural, colorless state.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 7, 2008
    Inventors: Fred Richard Scholer, Hsing-Hui Yu, Wayne A. Merrifield