Patents by Inventor Lian-Jen Chiou

Lian-Jen Chiou 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).

  • Mason's hand tool
    Patent number: 6131290
    Abstract: A mason's hand tool includes a blade, a handle, and a head cap. The blade is fastened with one end of the handle. The handle has a head end opposite to the one end of the handle. The head cap is fastened with the head end. The handle and the head cap are made integrally of a plastic material by injection molding. The head cap has a plurality of protrusions which are anchored in the head end of the handle.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: October 17, 2000
    Assignee: Ding Wei Enterprises, Inc.
    Inventor: Lian Jen Chiou
  • Structure of scissors
    Patent number: 5421090
    Abstract: A scissors includes two blades pivoted together in the middle, each blade having a handle unit at one end and a cutting unit at an opposite end, wherein the cutting unit of either blade has a respective wave-like cutting edge, the wave-like cutting edges of the two cutting units holding down the thing to be cut when they are moved to slide past each other.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: June 6, 1995
    Assignee: Ding Wei Enterprises, Inc.
    Inventor: Lian-Jen Chiou
  • Mason's hand tool
    Patent number: RE38093
    Abstract: A mason's hand tool includes a blade, a handle, and a head cap. The blade is fastened with one end of the handle. The handle has a head end opposite to the one end of the handle. The head cap is fastened with the hand end. The handle and the head cap are made integrally of a plastic material by injection molding. The head cap has a plurality of protruding which are anchored in the head end of the handle.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: April 29, 2003
    Assignee: Ding Wei Enterprises, Inc.
    Inventor: Lian-Jen Chiou