Patents by Inventor Randall D. KAMIEN

Randall D. KAMIEN 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: 11680207
    Abstract: Mesogenic compounds having a structure of Formula (I), (II) or (III): where A, B, X1, L, TG, m, and n are defined as in claim 1. Compositions containing these compounds, articles made from these polymerized and prepolymerized compositions, and methods of estimating the elastic constants and anchoring constants of a liquid crystal materials and mapping topological defect structures in liquid crystals using these compounds.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: June 20, 2023
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Shu Yang, Yu Xia, Francesca Serra, Randall D. Kamien, Kathleen J. Stebe
  • Patent number: 11642215
    Abstract: Provided are intraoperative devices, the devices comprising a substrate having a plurality of discontinuous cuts formed therein, the plurality of discontinuous cuts being formed such that when the substrate is subjected to deformation, the substrate is capable of deformation beyond an initial state so as to achieve a first shaped three-dimensional state. Through design of the cut patterns in 2D, one can locally control the stretchability and elasticity within the substrate. The substrate can then be deformed into a 3D structure that can provide shape and support to reconstructed tissue in the desired regions while also minimizing operative time and cost. Also provided are related methods of using the disclosed devices; the devices can be used in autologous tissue donation procedures as well as prosthetic procedures.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: May 9, 2023
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Shu Yang, Suhail K. Kanchwala, Randall D. Kamien, Eric Jablonka, Jason Christopher Jolly, Young-Joo Lee, Hyesung Cho, Michael Tanis
  • Publication number: 20210052367
    Abstract: Provided are intraoperative devices, the devices comprising a substrate having a plurality of discontinuous cuts formed therein, the plurality of discontinuous cuts being formed such that when the substrate is subjected to deformation, the substrate is capable of deformation beyond an initial state so as to achieve a first shaped three-dimensional state. Through design of the cut patterns in 2D, one can locally control the stretchability and elasticity within the substrate. The substrate can then be deformed into a 3D structure that can provide shape and support to reconstructed tissue in the desired regions while also minimizing operative time and cost. Also provided are related methods of using the disclosed devices; the devices can be used in autologous tissue donation procedures as well as prosthetic procedures.
    Type: Application
    Filed: February 6, 2019
    Publication date: February 25, 2021
    Inventors: Shu YANG, Suhail K. KANCHWALA, Randall D. KAMIEN, Eric JABLONKA, Jason Christopher JOLLY, Young-Joo LEE, Hyesung CHO, Michael TANIS
  • Publication number: 20180244995
    Abstract: The present disclosure is directed to mesogenic compounds having a structure of Formula (I), (II) or (III): where A, B, X1, L, TG, m, and n are defined herein, and compositions containing these compounds, as well as articles made from such polymerized and prepolymerized compositions and methods of estimating the elastic constants and anchoring constants of a liquid crystal materials and mapping topological defect structures in liquid crystals using these compounds.
    Type: Application
    Filed: February 18, 2016
    Publication date: August 30, 2018
    Inventors: Yu XIA, Randall D. KAMIEN, Shu YANG, Francesca SERRA, Kathleen J. Stebe