Patents by Inventor Chun-Pei Lee

Chun-Pei Lee 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 surface-treating mirror-finish stainless steel workpiece
    Patent number: 8974269
    Abstract: The present invention discloses a method for surface-treating a mirror-finish stainless steel workpiece, which comprises steps: dividing the surface of a mirror-finish stainless steel workpiece into different grinding areas according to the depths of the scratches; selecting sand papers respectively having appropriate grit sizes for the grinding areas, and grinding the grinding areas to remove all the scratches; sequentially using three combinations of polishing agents and grinding materials to undertake polishing; and using an abrasive paste and a fourth grinding material to perform mirror-finishing.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: March 10, 2015
    Inventor: Chun Pei Lee
  • METHOD FOR SURFACE-TREATING MIRROR-FINISH STAINLESS STEEL WORKPIECE
    Publication number: 20130059504
    Abstract: The present invention discloses a method for surface-treating a mirror-finish stainless steel workpiece, which comprises steps: dividing the surface of a mirror-finish stainless steel workpiece into different grinding areas according to the depths of the scratches; selecting sand papers respectively having appropriate grit sizes for the grinding areas, and grinding the grinding areas to remove all the scratches; sequentially using three combinations of polishing agents and grinding materials to undertake polishing; and using an abrasive paste and a fourth grinding material to perform mirror-finishing.
    Type: Application
    Filed: November 5, 2012
    Publication date: March 7, 2013
    Inventor: Chun Pei Lee
  • Method For Surface-Treating Mirror-Finish Stainless Steel Workpiece
    Publication number: 20110281506
    Abstract: The present invention discloses a method for surface-treating a mirror-finish stainless steel workpiece, which comprises steps: dividing the surface of a mirror-finish stainless steel workpiece into different grinding areas according to the depths of the scratches; selecting sand papers respectively having appropriate grit sizes for the grinding areas, and grinding the grinding areas to remove all the scratches; sequentially using three combinations of polishing agents and grinding materials to undertake polishing; and using an abrasive paste and a fourth grinding material to perform mirror-finishing.
    Type: Application
    Filed: July 1, 2010
    Publication date: November 17, 2011
    Inventor: Chun-Pei Lee