Patents by Inventor Hsiu-Hua Chang

Hsiu-Hua 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).

  • Hammer with Buffer Assembly
    Publication number: 20140260812
    Abstract: A hammer includes a head, a handle pivotally connected to the head, and a buffer assembly arranged between the head and the handle. The buffer assembly includes a compression spring and a sheath. The compression spring is compressed between the head and the handle. The sheath is used to protectively cover the compression spring.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventor: Hsiu-Hua CHANG
  • Multi-Purpose Hammer
    Publication number: 20140264208
    Abstract: A multi-purpose hammer includes a hammer head connected to a handle. The hammer head includes an anvil, two claws, a horn and a protuberance. The claws extend substantially opposite to the anvil. The horn extends from one of the claws. The protuberance is formed between the anvil and the claws.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventor: Hsiu-Hua CHANG
  • Sheath for Tip of Tool
    Publication number: 20140255626
    Abstract: A tool is provided with a sheath. The sheath includes at least one hollow body. The hollow body includes a space with an open end and a closed end opposite to the open end so that a tip of a tool can be inserted in the space through the open end.
    Type: Application
    Filed: March 10, 2013
    Publication date: September 11, 2014
    Inventor: Hsiu-Hua CHANG
  • Tool bit
    Patent number: D706106
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: June 3, 2014
    Inventor: Hsiu-Hua Chang