Patents by Inventor Han-Yuan Cheng

Han-Yuan Cheng 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).

  • Publication number: 20140053307
    Abstract: A protecting mask includes a main body, a mask unit, and multiple connecting members. The main body includes a connecting wall having an inner surface and an outer surface and formed with multiple first through holes. The mask unit is disposed at the outer surface of the connecting wall and is formed with multiple second through holes corresponding to the first through holes, respectively. Each connecting member includes an engaging portion removably engaging the mask unit, and a resilient protruding portion extending from the engaging portion through a corresponding pair of the first and second through holes, and engaging the inner surface of the connecting wall.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 27, 2014
    Applicant: POLISON CORPORATION
    Inventor: Han-Yuan Cheng