Patents by Inventor Yadong Pu

Yadong Pu 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 for preparing high fluffiness down by multiple treatments with metal salts
    Patent number: 10760209
    Abstract: A method for preparing a high fluffiness down by multiple treatments with metal salts includes: degreasing a down sample with a degreasing agent; washing the down sample with water; oxidizing the down sample with an oxidizing agent; washing the down sample with water; conducting a first crosslinking treatment with basic zirconium sulfate; washing the down sample with water; conducting a second crosslinking treatment with basic aluminum sulfate; washing the down sample with water; and drying the down sample to obtain the high fluffiness down.
    Type: Grant
    Filed: March 1, 2020
    Date of Patent: September 1, 2020
    Assignee: SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Taotao Qiang, Yadong Pu, Qi Zhang