Patents by Inventor Shyi-Yau Chang

Shyi-Yau 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).

  • Publication number: 20070268684
    Abstract: A flashlight includes a flashlight body, a lamp, a battery box, at least one battery, a control switch, and a bottom cap. Thus, the flashlight body has a bat-shaped configuration to enhance the outer appearance of the flashlight. In addition, the flashlight body has an elongated shape and the lamp is far spaced from the holding portion of the flashlight body so that the user can hold the holding portion of the flashlight body to push away an object in front of the lamp, thereby facilitating the user inspecting the surrounding situation at a dark place.
    Type: Application
    Filed: May 2, 2007
    Publication date: November 22, 2007
    Inventor: Shyi-Yau Chang