Patents by Inventor Shangwu Liu

Shangwu 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: 9320262
    Abstract: An artificial pet chewing leather, manufacturing method and application thereof are disclosed. Raw materials for the artificial pet chewing leather includes water and leather powder obtained by grinding leather, or leather pulp obtained by grinding leather in damp condition with water, or the leather powder and the leather pulp. A method for manufacturing the artificial pet chewing leather includes mixing the raw material and molding, wherein the molding refers to extrusion molding by extruder, molding by biscuit machine, press molding by mould or molding by hand craft. The artificial pet chewing leather is used for pet food. The artificial pet chew of the present invention overcomes shortcomings of the prior art. The raw material is abundantly available and easily obtained. The manufacturing method is easy and cost thereof is low. Furthermore, the pet chew products satisfy tastes of pet dogs and are easy to popularize.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: April 26, 2016
    Inventors: Chuanhao Wang, Shangwu Liu
  • Publication number: 20130333630
    Abstract: An artificial pet chewing leather, manufacturing method and application thereof are disclosed. Raw materials for the artificial pet chewing leather includes water and leather powder obtained by grinding leather, or leather pulp obtained by grinding leather in damp condition with water, or the leather powder and the leather pulp. A method for manufacturing the artificial pet chewing leather includes mixing the raw material and molding, wherein the molding refers to extrusion molding by extruder, molding by biscuit machine, press molding by mould or molding by hand craft. The artificial pet chewing leather is used for pet food. The artificial pet chew of the present invention overcomes shortcomings of the prior art. The raw material is abundantly available and easily obtained. The manufacturing method is easy and cost thereof is low. Furthermore, the pet chew products satisfy tastes of pet dogs and are easy to popularize.
    Type: Application
    Filed: March 16, 2011
    Publication date: December 19, 2013
    Inventor: Shangwu Liu
  • Publication number: 20050069624
    Abstract: Provided herein is a process for producing fried animal skin products which are useful among other things as snack treats for domestic pets, such as dogs. A fried animal skin according to the invention has a high resistance to an applied crushing stress, which renders a fried skin product according to the invention to be well-suited to be chewed on by dogs while not being readily consumable by dogs in too quick a time frame. A fried skin product according to a preferred form of the invention contains no artificial colorants or flavorants, and is highly appealing to dogs of all breeds.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 31, 2005
    Inventor: Shangwu Liu