Patents by Inventor Han C. Sun

Han C. Sun 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).

  • Rack for growing plants
    Patent number: 5331764
    Abstract: A rack for growing plants including a collapsible open frame having wire holes, through which a cord is inserted to set up a netting stretched in the collapsible open frame, and upright supports to support the collapsible open frame, each upright support having a forked top end terminated to a downward hook hooked in a hole on either corner on the collapsible open frame and an upward angle bar to support the collapsible open frame at either corner.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: July 26, 1994
    Inventor: Han C. Sun