Patents by Inventor Herman Yu Ming Chang

Herman Yu Ming Chang 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).

  • Power shredder with individually removable components structure
    Patent number: 8544781
    Abstract: A power shredder with individually removable components structure comprising two main removable components: the power component and the shredding mechanism component. The power and the shredding mechanism components can be individually attached and removed from the waste collector of the power shredder. The power component further comprises two main parts: a detachable motor and a detachable gear assembly. When any of the power component, shredding mechanism component, motor or gear assembly should become defective, the use can simply remove and replace the defective part with a new part.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: October 1, 2013
    Assignee: Dongguan Futai Electronic Co., Ltd.
    Inventors: Guofeng Pan, Herman Yu Ming Chang