Patents by Inventor Ip Hung Yam

Ip Hung Yam 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).

  • Sprayer
    Patent number: D721161
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: January 13, 2015
    Inventor: Ip Hung Yam