Patents by Inventor Zhu Junsheng

Zhu Junsheng 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).

  • Method of preparation of biologically active Ginkgo biloba product
    Patent number: 6221356
    Abstract: This invention provides a method for preparing a biologically active ginkgo biloba extract that is not subject to environmental restrictions and is efficient. The method involves extracting purified ginkgo biloba from ginkgo biloba leaf through a series of steps using alcohol as a solvent, including filtration, vacuum distillation, adsorption with silica gel, centrifugation, and chromatography. The invention also provides for a method of making dietary supplements from the ginkgo biloba product and of administering these supplements.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: April 24, 2001
    Assignee: Viva America Marketing, Inc.
    Inventor: Zhu Junsheng