Patents by Inventor Yao Shengyong

Yao Shengyong 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).

  • Patent number: D678981
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: March 26, 2013
    Assignee: Brasscraft Manufacturing Company
    Inventor: Yao Shengyong