Patents by Inventor Liming M. Voo

Liming M. Voo 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).

  • Patent number: 9808987
    Abstract: A surrogate multilayered material and manufacturing method thereof includes a first fiber reinforced layer, the first reinforced layer including a crosslinked polymer and fibers, and a second fiber reinforced layer, the second reinforced layer including the crosslinked polymer and the fibers. A foam layer is disposed between the first and second fiber reinforced layers. Opposite faces of the foam layer are in direct contact with the first fiber reinforced layer and the second fiber reinforced layer. The foam layer has a compressive strength of about 3.5 to about 4.5 MPa, when measured as per ASTM-D-1621-73, and a shear strength of 1.50 to about 2.15 MPa, when measured as per ASTM-C-273.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: November 7, 2017
    Assignee: The Johns Hopkins University
    Inventors: Andrew C. Merkle, Jack C. Roberts, Catherine M. Carneal, Jeffrey M. Paulson, Matthew S. Johannes, Liming M. Voo
  • Patent number: 9142146
    Abstract: A surrogate multilayered material includes a first fiber reinforced layer; the first reinforced layer including a crosslinked polymer and fibers; a second fiber reinforced layer; the second reinforced layer including the crosslinked polymer and the fibers; a foam layer; the foam layer disposed between the first fiber reinforced layer and the second fiber reinforced layer; where opposite faces of the foam layer are in direct contact with the first fiber reinforced layer and the second fiber reinforced layer; the foam layer having a compressive strength of about 3.5 to about 4.5 MPa, when measured as per ASTM-D-1621-73, and a shear strength of 1.50 to about 2.15 MPa, when measured as per ASTM-C-273.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: September 22, 2015
    Assignee: The Johns Hopkins University
    Inventors: Andrew C. Merkle, Jack C. Roberts, Catherine M. Carneal, Jeffrey M. Paulson, Matthew S. Johannes, Liming M. Voo
  • Patent number: 9011158
    Abstract: A human surrogate neck model includes a spinal neck region containing cervical vertebrae. A biosimulant intervertebral material is inserted between the cervical vertebrae. The spinal neck region is surrounded by a first silicone material mixed with a polymeric cross-linking inhibitor. One or more elastic tension bands are anchored to a top interface and a bottom interface of the neck model. A second silicone material mixed with a polymeric cross-linking inhibitor is applied to surround the spinal neck region and the first silicone material and to embed the tension bands. One or more of the elastic tension bands and/or a concentration ratio of the first silicone material or second silicone material to the polymeric cross-linking inhibitor can be adjusted for variable test conditions to closely simulate or mimic the static and dynamic characteristics of a human neck in various scenarios.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: April 21, 2015
    Assignee: The Johns Hopkins University
    Inventors: Andrew C. Merkle, Jack C. Roberts, Ian D. Wing, Liming M. Voo, Craig B. Leese, Howard A. Conner
  • Publication number: 20140302306
    Abstract: A surrogate multilayered material includes a first fiber reinforced layer; the first reinforced layer including a crosslinked polymer and fibers; a second fiber reinforced layer; the second reinforced layer including the crosslinked polymer and the fibers; a foam layer; the foam layer disposed between the first fiber reinforced layer and the second fiber reinforced layer; where opposite faces of the foam layer are in direct contact with the first fiber reinforced layer and the second fiber reinforced layer; the foam layer having a compressive strength of about 3.5 to about 4.5 MPa, when measured as per ASTM-D-1621-73, and a shear strength of 1.50 to about 2.15 MPa, when measured as per ASTM-C-273.
    Type: Application
    Filed: June 4, 2012
    Publication date: October 9, 2014
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Andrew C. Merkle, Jack C. Roberts, Catherine M. Carneal, Jeffrey M. Paulson, Matthew S. Johannes, Liming M. Voo
  • Publication number: 20140220530
    Abstract: A human surrogate neck model includes a spinal neck region containing cervical vertebrae. A biosimulant intervertebral material is inserted between the cervical vertebrae. The spinal neck region is surrounded by a first silicone material mixed with a polymeric cross-linking inhibitor. One or more elastic tension bands are anchored to a top interface and a bottom interface of the neck model. A second silicone material mixed with a polymeric cross-linking inhibitor is applied to surround the spinal neck region and the first silicone material and to embed the tension bands. One or more of the elastic tension bands and/or a concentration ratio of the first silicone material or second silicone material to the polymeric cross-linking inhibitor can be adjusted for variable test conditions to closely simulate or mimic the static and dynamic characteristics of a human neck in various scenarios.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 7, 2014
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Andrew C. Merkle, Jack C. Roberts, Ian D. Wing, Liming M. Voo, Craig B. Leese, Howard A. Conner