Patents by Inventor Yiping Qiu

Yiping Qiu 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).

  • Three-dimensionally reinforced cellular matrix composite and method of making same
    Patent number: 6555488
    Abstract: A light-weight and impact-resistant composite material formed from a three-dimensional textile structure preform comprising at least three systems of yarns that define a plurality of interstices within the textile structure. A cellular matrix material impregnates the textile structure so as to fill the interstices of the three-dimensional textile structure and to coat at least a portion of the surface area thereof.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: April 29, 2003
    Assignee: North Carolina State University
    Inventors: Yiping Qiu, Mansour H. Mohamed, Wei Xu
  • Method of making a three-dimensionally reinforced cellular matrix composite
    Patent number: 6521148
    Abstract: A light-weight and impact-resistant composite material formed from a three-dimensional textile structure preform comprising at least three systems of yarns that define a plurality of interstices within the textile structure. A cellular matrix material impregnates the textile structure so as to fill the interstices of the three-dimensional textile structure and to coat at least a portion of the surface area thereof.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: February 18, 2003
    Assignee: North Carolina State University
    Inventors: Yiping Qiu, Mansour H. Mohamed, Wei Xu
  • Three-dimensionally reinforced cellular matrix composite and method of making same
    Publication number: 20010014565
    Abstract: A light-weight and impact-resistant composite material formed from a three-dimensional textile structure preform comprising at least three systems of yarns that define a plurality of interstices within the textile structure. A cellular matrix material impregnates the textile structure so as to fill the interstices of the three-dimensional textile structure and to coat at least a portion of the surface area thereof.
    Type: Application
    Filed: April 3, 2001
    Publication date: August 16, 2001
    Inventors: Yiping Qiu, Mansour H. Mohamed, Wei Xu