Patents by Inventor Junfeng Liang

Junfeng Liang 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).

  • Artificial cornea with double-side microtextured pHEMA hydrogel
    Patent number: 11950997
    Abstract: An artificial cornea and an associated manufacturing method are disclosed. The artificial cornea has two sides, each of which has an associated microstructure. In an embodiment, microlines can be provided on an anterior side, and a posterior side can have micropores. Both the geometry of the microstructures and their dimensions can be customized for an individual patient. The geometry of the artificial cornea itself and its dimensions can also be customized as such. In addition, the lifetime of the artificial cornea can be significantly enhanced by adding co-polymer(s) into the hydrogel to strengthen its mechanical properties. Patient recovery can be aided by adding peptides into the artificial cornea surfaces to improve cell growth post-operation.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: April 9, 2024
    Assignee: The Trustees of the Stevens Institute of Technology
    Inventors: Yiwen Xi, Chang-Hwan Choi, Xiaojun Yu, Junfeng Liang
  • Artificial Cornea with Double-Side Microtextured pHEMA Hydrogel
    Publication number: 20200390539
    Abstract: An artificial cornea and an associated manufacturing method are disclosed. The artificial cornea has two sides, each of which has an associated microstructure. In an embodiment, microlines can be provided on an anterior side, and a posterior side can have micropores. Both the geometry of the microstructures and their dimensions can be customized for an individual patient. The geometry of the artificial cornea itself and its dimensions can also be customized as such. In addition, the lifetime of the artificial cornea can be significantly enhanced by adding co-polymer(s) into the hydrogel to strengthen its mechanical properties. Patient recovery can be aided by adding peptides into the artificial cornea surfaces to improve cell growth post-operation.
    Type: Application
    Filed: May 20, 2020
    Publication date: December 17, 2020
    Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY
    Inventors: Yiwen Xi, Chang-Hwan Choi, Xiaojun Yu, Junfeng Liang
  • Drug delivery compositions
    Patent number: 7329638
    Abstract: The present invention relates to multicomponent compositions and methods of administering these compositions, which specifically translocate therapeutic molecules (e.g., drugs or prodrugs) across biological membranes thus reducing potential toxic side effects on nontargeted cells and tissues.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: February 12, 2008
    Assignee: The Regents of the University of Michigan
    Inventors: Victor C. Yang, Yoon Jeong Park, Junfeng Liang
  • Drug delivery compositions
    Publication number: 20050042753
    Abstract: The present invention relates to multicomponent compositions and methods of administering these compositions, which specifically translocate therapeutic molecules (e.g., drugs or prodrugs) across biological membranes thus reducing potential toxic side effects on nontargeted cells and tissues.
    Type: Application
    Filed: April 29, 2004
    Publication date: February 24, 2005
    Applicant: The Regents of the University of Michigan
    Inventors: Victor Yang, Yoon Park, Junfeng Liang