Patents by Inventor Wen-Shu Cheng

Wen-Shu Cheng 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).

  • Adhesive tape cutter
    Patent number: 6799623
    Abstract: An adhesive tape cutter includes a control mechanism, an operation mechanism located on the control mechanism and a dispensing mechanism connecting to the control mechanism and located above the operation mechanism. The control mechanism has a protective mechanism, a wiper and a cutting mechanism. When the tape cutter is not in use, the protective mechanism is extended over the cutting mechanism outside the tape cutter to avoid hurting users.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: October 5, 2004
    Assignee: Tai-Ray Industries Ltd.
    Inventor: Wen-Shu Cheng