Patents by Inventor Sit Sing Kai

Sit Sing Kai 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).

  • Electric coffee maker
    Patent number: D732332
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 23, 2015
    Assignee: SEB
    Inventor: Sit Sing Kai