Patents by Inventor Maochen Chang

Maochen Chang 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).

  • Plug in night light base
    Publication number: 20200009282
    Abstract: This invention relates in general to a device, which uses the heat from a light bulb to dispense fragrance oil. Its modern design makes it work as a functional home decor, too. It works as both a light and a warmer aid, so you get real value for what you pay for. Its color works well with any warmer color, too, making it among the most versatile of all.
    Type: Application
    Filed: July 3, 2018
    Publication date: January 9, 2020
    Inventor: Maochen Chang
  • Remotely-controlled power cutoff switch
    Patent number: D664931
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: August 7, 2012
    Inventor: Maochen Chang