Patents by Inventor Devin Ru Liu

Devin Ru Liu 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).

  • Patent number: 8196547
    Abstract: An animal potty chair, particularly for a dog or cat, is to be used indoor and/or outdoor to aid civilization of domestic animals and to improve quality of life for millions of families with animals. The animal potty chair comprising: (1) a defined space with a surrounding wall-like structure with a one-way entry and one-way exit mean for an animal to release waste to a designated area without leakage to the outside of the top part of the potty chair; (2) a downwards operable mesh surface of the potty chair for an animal to stand on safely and to release waste within a protective space; (3) a fitting-sealing-fixing adaptor between the potty chair and a toilet, which is to fix the potty chair onto the toilet and to prevent leakage of the animal waste; (4) an easy cleaning container for holding animal waste, and (5) a signal system comprising a trigger mean to open the mesh and to flush the toilet by an animal with its body weight. The method on how to use the animal potty chair is also presented.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: June 12, 2012
    Inventors: Devin Ru Liu, James Zhou Liu
  • Publication number: 20100206244
    Abstract: The present invention discloses an animal potty chair, particularly for a dog or cat, to be used indoor and/or outdoor to aid civilization of domestic animals and to improve quality of life for millions of families with animals. The animal potty chair comprising: (1) a defined space to guide an animal to release waste to a designated area; (2) a supporting mean covered with a mesh for an animal to stand and to release waste (3) a sealer-adaptor of the toilet; (4) a receptacle mean for animal waste; (5) a sensor to monitor an animal to come to a designated place; (6) a signal to indicate that an animal is/was at a designated place. The current invention has caused the revolutionary transformation of a pet from an accident-causing animal to a civilized non-human member of the family. There will be no more wet urine paw tracks left anywhere in the owner's house. Solid wastes stay on the top of the mesh, semi-liquid or loose feces fall into the toilet.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 19, 2010
    Inventors: Devin Ru Liu, James Zhou Liu