Patents by Inventor John (aka. Xiaoqiang) Du

John (aka. Xiaoqiang) Du 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).

  • Publication number: 20060199469
    Abstract: A multi-purpose launching device for propelling and disseminating confetti, paper disks or fluid contained in a disposable cartridge. Contents of the cartridge as well as the outside surface of the launching tube may be covered with a fluorescent material. The top part of the launching tube may serve as a flagpole to supplement its primary function at large social gatherings such as sporting or music events, wedding ceremonies, holiday celebrations, presidential campaigns, etc. The device consists of a cylindrical launching apparatus and a cylindrical cartridge that may contain confetti, paper disks, fluid, or other soft materials such as fiber, string, fabric, etc. The bottom end of the upper section of the launching tube inserts into the lower section of the launching tube.
    Type: Application
    Filed: December 4, 2003
    Publication date: September 7, 2006
    Inventor: John (aka. Xiaoqiang) Du