Patents by Inventor Mary Hui Dong

Mary Hui Dong 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).

  • APPARATUS AND METHOD FOR HOT-COLD CONTRAST THERAPY
    Publication number: 20120239122
    Abstract: The present invention teaches an apparatus and method for physical therapy using prompt changing temperature from hot to cold. Its application in proper conditions may promote human body's self recovery function, restore balance for soft tissues and relieve inner pressure.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 20, 2012
    Inventors: Rong Dong, Mary Hui Dong