Patents by Inventor Yiwen Xi

Yiwen Xi 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