Patents by Inventor Chia P. Liul

Chia P. Liul 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).

  • Rat and wild animal catcher
    Patent number: 5329723
    Abstract: A rat and wild animal catcher mainly comprise a cage having two lateral open ends each having a gate the top edge of which pivotly connects to the top grid of the cage and the bottom edge of which extends outward and downward toward the bottom grid of the cage. A step member inside the cage is pivotly connected to the bottom grid of the cage such that when a rat or wild animal enters the cage and touches the step member, the step member is subjected to a downward force and causes the up lifted gates to fall down at the same time and close the open ends of the cage to prevent the caught rat or wild animal from coming out of the cage.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: July 19, 1994
    Inventor: Chia P. Liul