Patents by Inventor Duanjian Cao

Duanjian Cao 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).

  • METHOD OF FORMING SHELL OF ELECTRICAL DEVICE
    Publication number: 20120013041
    Abstract: A method of forming a shell of an electrical device comprises the steps of: conforming a sheet assembly to at least a part of an outer configuration of the shell, wherein the sheet assembly includes a sheet and a photo-cured coating on one side of the sheet, the coating forming a predetermined pattern; injecting a base material into an injection mold for forming the shell after placing the sheet assembly inside the injection mold, with the side of the sheet on which the photo-cured coating is formed facing a cavity of the injection mold; and removing the sheet assembly from the shell.
    Type: Application
    Filed: December 24, 2009
    Publication date: January 19, 2012
    Inventors: Duanjian Cao, Junfeng Liu, Wenhai Luo