Patents by Inventor Ruicheng Wang Wang

Ruicheng Wang Wang 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).

  • Patent number: 10144158
    Abstract: The following invention is used to recycle broken pieces of crayons, A crayon package comprises a portion of the box which can be placed in an oven, said portion of the box being detachable from the package, said portion of the box is designed as a crayon recycling cartridge, the crayon recycling cartridge comprises slots, the edges of the slots are provided with guide slopes, the bottom of the guide slope is connected to the edge of the slot and the slot is expanded outward, which increases the volume of the slot. The used crayons will be placed into the slots, melted and re-casted into new crayons. And if too much used crayons are placed above the edge of the slots, when the crayon melts, the guide slope will catch the melted crayons, sending it back down into the slots, fitting to the volume of the slots.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: December 4, 2018
    Inventor: Ruicheng Wang Wang