Patents by Inventor Kai-Lo Yu

Kai-Lo 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).

  • Uninterrupted ink marker
    Patent number: 7445395
    Abstract: An uninterrupted ink marker, which includes a base tube, a vertical tube, a refill head and a cap, is disclosed. The base tube includes an inner space, a base section and a bent section. The bent section is curvedly extended from the base section, and the base section has an open end to contain the refill head. The vertical tube, which has an inner space and a bottom end, is connected to the base tube on the bottom end and substantially vertical to the base section of the base tube. The cap has at least one U recessed portion for replacing to the refill head.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: November 4, 2008
    Inventor: Kai-Lo Yu
  • Uninterrupted ink marker
    Publication number: 20070081849
    Abstract: An uninterrupted ink marker, which includes a base tube, a vertical tube, a refill head and a cap, is disclosed. The base tube includes an inner space, a base section and a bent section. The bent section is curvedly extended from the base section, and the base section has an open end to contain the refill head. The vertical tube, which has an inner space and a bottom end, is connected to the base tube on the bottom end and substantially vertical to the base section of the base tube. The cap has at least one U recessed portion for replacing to the refill head.
    Type: Application
    Filed: October 6, 2005
    Publication date: April 12, 2007
    Inventor: Kai-Lo Yu