Patents by Inventor Weiguan Zhou

Weiguan Zhou 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).

  • Extracting hirudin from leech in vivo
    Patent number: 9481718
    Abstract: Described herein relates to methods and compositions for extracting hirudin from a plurality of leeches in vivo. The method may include contacting leeches with inducing membranes containing an inducing agent for a first predetermined time period. The inducing membranes may be removed from the leeches, and the leeches may be contacted with a regurgitation agent for a second predetermined time period in a container such that the leeches are induced to regurgitate regurgitation contents. The regurgitation contents may be collected and purified to obtain the hirudin.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: November 1, 2016
    Assignee: North American Hirudin Supplement Products Inc.
    Inventor: Weiguan Zhou
  • Extracting Hirudin from Leech in vivo
    Publication number: 20150218234
    Abstract: Described herein relates to methods and compositions for extracting hirudin from a plurality of leeches in vivo. The method may include contacting leeches with inducing membranes containing an inducing agent for a first predetermined time period. The inducing membranes may be removed from the leeches, and the leeches may be contacted with a regurgitation agent for a second predetermined time period in a container such that the leeches are induced to regurgitate regurgitation contents. The regurgitation contents may be collected and purified to obtain the hirudin.
    Type: Application
    Filed: April 20, 2015
    Publication date: August 6, 2015
    Inventor: Weiguan Zhou