Patents by Inventor Jun Huei Yen

Jun Huei Yen 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).

  • Tool holding and testing device
    Publication number: 20020175257
    Abstract: A tool holding and testing device includes a plate, a tool having a rotatable barrel, and a device for rotatably securing the barrel of the tool to the plate, and for allowing the barrel to be tested and rotated relative to the plate without disengaging the tool from the plate. The barrel includes a non-circular opening for receiving a non-circular retaining member which includes one or more stops engaged with the barrel for rotatably securing the barrel of the tool to the plate and which includes a knob for rotating the retaining member relative to the plate.
    Type: Application
    Filed: May 25, 2001
    Publication date: November 28, 2002
    Inventor: Jun Huei Yen