Patents by Inventor Ping Yu Lei

Ping Yu Lei 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).

  • Cat toilet device
    Patent number: 8671888
    Abstract: A cat toilet device includes a bottom part, a seat and a top part. The seat has a lip extending inward therefrom so as to support the top part. The top part has multiple apertures and a side hole is defined through a side of the top part. The cat is trained to use the cat toilet device to save the need of the cat litter. A slot is defined in the top face of the seat and a cup is engaged with the slot so as to receive tools for clearing the cat toilet.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: March 18, 2014
    Inventors: Ping Yu Lei, Cheng Han Hsiao