Patents by Inventor Dai Fei Elmer Ker

Dai Fei Elmer Ker 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).

  • FACILE FABRICATION OF A 3D-PRINTABLE (BIO)MATERIAL USE AND METHOD OF MAKING THE SAME
    Publication number: 20230383042
    Abstract: A biomaterial resin is a combination of a thiourethane oligomer, at least one (meth)acrylate monomer, with a photoinitiator. The thiourethane oligomer comprises the addition product of at least one thiol monomer and at least one isocyanate monomer. The biomaterial resin can be converted into a biomaterial device that is the 3D-printed biomaterial network. This biomaterial network can be further processed thermally and/or photochemically to increase the network's crosslinking density with or without an imposed crosslinking density gradient. The biomaterial network can be used in a biomaterial device such as a tendon substitute.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 30, 2023
    Inventors: Dai Fei Elmer KER, Xu ZHANG, Dan WANG
  • Bone-tendon graft biomaterial, use as a medical device and method of making same
    Patent number: 11517645
    Abstract: The invention relates to a polyurethane bone-tendon graft biomaterial and method of making the bone-tendon graft biomaterial. The biomaterial has a gradient of mechanical properties through photocrosslinking such that a first end of the biomaterial is crosslinked at a higher degree than a second end, and the first end of the biomaterial has mechanical properties of bone and the second end of the biomaterial has mechanical properties of tendon.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 6, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Dai Fei Elmer Ker, Yunzhi Yang
  • BONE-TENDON GRAFT BIOMATERIAL, USE AS A MEDICAL DEVICE AND METHOD OF MAKING SAME
    Publication number: 20200254141
    Abstract: The invention relates to a polyurethane bone-tendon graft biomaterial and method of making the bone-tendon graft biomaterial. The biomaterial has a gradient of mechanical properties through photocrosslinking such that a first end of the biomaterial is crosslinked at a higher degree than a second end, and the first end of the biomaterial has mechanical properties of bone and the second end of the biomaterial has mechanical properties of tendon.
    Type: Application
    Filed: December 20, 2019
    Publication date: August 13, 2020
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Dai Fei Elmer Ker, Yunzhi Yang
  • Bone-tendon graft biomaterial, use as a medical device and method of making same
    Patent number: 10668183
    Abstract: The invention relates to a polyurethane bone-tendon graft biomaterial and method of making the bone-tendon graft biomaterial. The biomaterial has a gradient of mechanical properties through photocrosslinking such that a first end of the biomaterial is crosslinked at a higher degree than a second end, and the first end of the biomaterial has mechanical properties of bone and the second end of the biomaterial has mechanical properties of tendon.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: June 2, 2020
    Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Dai Fei Elmer Ker, Yunzhi Yang
  • BONE-TENDON GRAFT BIOMATERIAL, USE AS A MEDICAL DEVICE AND METHOD OF MAKING SAME
    Publication number: 20180250434
    Abstract: The invention relates to a polyurethane bone-tendon graft biomaterial and method of making the bone-tendon graft biomaterial. The biomaterial has a gradient of mechanical properties through photocrosslinking such that a first end of the biomaterial is crosslinked at a higher degree than a second end, and the first end of the biomaterial has mechanical properties of bone and the second end of the biomaterial has mechanical properties of tendon.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 6, 2018
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Dai Fei Elmer Ker, Yunzhi Yang