Patents by Inventor Xiaoxia Cheng

Xiaoxia Cheng 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).

  • Foldable knife
    Patent number: 7337546
    Abstract: A foldable knife, comprising a blade, a knife head and a handle. The knife head has a movable part which can be pushed to press on a locking part. The locking part has two ends, one end is rotably fastened by a bolt to the knife head and another, a free end, has a catch. The blade has a notch on an edge opposite to a cutting edge. The catch corresponds to the notch. The blade may have two or more notches. The handle may be hollow and knife head is rotably fastened on the handle by a bolt. The knife head and the blade can be rotably folded at least partially into the handle.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: March 4, 2008
    Inventor: Xiaoxia Cheng
  • Foldable knife
    Publication number: 20070011881
    Abstract: A foldable knife, comprising a blade, a knife head and a handle. The knife head has a movable part which can be pushed to press on a locking part. The locking part has two ends, one end is rotably fastened by a bolt to the knife head and another, a free end, has a catch. The blade has a notch on an edge opposite to a cutting edge. The catch corresponds to the notch. The blade may have two or more notches. The handle may be hollow and knife head is rotably fastened on the handle by a bolt. The knife head and the blade can be rotably folded at least partially into the handle.
    Type: Application
    Filed: July 12, 2006
    Publication date: January 18, 2007
    Inventor: Xiaoxia Cheng