Patents by Inventor Zha Shi De

Zha Shi De 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).

  • Steam sterilizer
    Patent number: D615664
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: May 11, 2010
    Assignee: Sylvan, Inc.
    Inventor: Zha Shi De