Patents by Inventor David Wei Li

David Wei Li 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: D751332
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: March 15, 2016
    Assignee: D.W.L. Industries, Co.
    Inventor: David Wei Li