Patents by Inventor Ping-Fu Zeng

Ping-Fu Zeng 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).

  • Detachable lens of an eyeglasses structure
    Publication number: 20070052916
    Abstract: The present invention discloses a detachable lens of eyeglasses structure that includes a lens and a connecting section. An embedded connecting device installed on either the left or the right side of the lens and the connecting section, such that the lens and the connecting section can be connected or detached easily by the embedded connecting device and the lens can be detached from a nose bridge or a frame easily.
    Type: Application
    Filed: August 24, 2005
    Publication date: March 8, 2007
    Inventor: Ping-Fu Zeng