Patents by Inventor Guoyan Yin

Guoyan Yin 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).

  • Infrared thermometer
    Patent number: D919454
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: May 18, 2021
    Inventor: Guoyan Yin
  • Infrared thermometer
    Patent number: D919455
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: May 18, 2021
    Inventor: Guoyan Yin
  • Infrared thermometer
    Patent number: D919456
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: May 18, 2021
    Inventor: Guoyan Yin