Patents by Inventor Rong-Long Wang

Rong-Long Wang 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).

  • Nursing bottle with color-change liquid temperature indication means
    Publication number: 20020007776
    Abstract: A nursing bottle having a waterproof film adhered to the periphery, the waterproof film having a color-change temperature sensitive material that changes color subject to the variation of temperature of the liquid filled in the nursing bottle.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 24, 2002
    Inventor: Rong-Long Wang