Patents by Inventor I Pai

I Pai 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).

  • Safe height-adjusting device
    Patent number: 5039054
    Abstract: A safe height-adjusting device includes two pairs of pivotally interconnected triangular plates which support the upper portion of a two-part body on the lower portion of the two-part body. When the height of the body is adjusted, the fingers of the user cannot be clamped between the plates.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: August 13, 1991
    Inventor: I Pai