Patents by Inventor Li-Hsin Han

Li-Hsin Han 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).

  • Publication number: 20240033401
    Abstract: The present invention provides an injectable scaffold comprising a plurality of unclad microfibers, and a diluent solution.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 1, 2024
    Inventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, John Todd Lawrence, Maurizio Pacifici
  • Patent number: 11384456
    Abstract: In one embodiment, the present invention is a method for producing microfibers comprising the steps of: (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and (g) repeating steps (d)-(f) as desired.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: July 12, 2022
    Assignee: Drexel University
    Inventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, Alisa Morss Clyne, Momtaz Alhindi, Jeffrey Krystek, Victor Micucci, Evan Ostrow, Sabah Shafi, Lin Han, Lanziye He
  • Publication number: 20210047758
    Abstract: In one embodiment, the present invention is a method for producing microfibers comprising the steps of: (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and (g) repeating steps (d)-(f) as desired.
    Type: Application
    Filed: October 30, 2020
    Publication date: February 18, 2021
    Inventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, Alisa Morss Clyne, Momtaz Alhindi, Jeffrey Krystek, Victor Micucci, Evan Ostrow, Sabah Shafi, Lin Han, Lanziye He
  • Patent number: 10837131
    Abstract: A method for producing microfibers includes the steps of (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and repeating steps (d)-(f) as desired. Different apparatuses for performing the method are also provided.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: November 17, 2020
    Assignee: Drexel University
    Inventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, Alisa Morss Clyne, Momtaz Alhindi, Jeffrey Krystek, Victor Micucci, Evan Ostrow, Sabah Shafi, Lin Han, Lanziye He
  • Patent number: 10004587
    Abstract: Macroporous 3-D tissue engineering scaffold comprising elastomeric cross-linked polymer units and interconnected macropores containing living cells are produced by step of: in a mixture of the cells and elastomeric polymer units comprising activatable crosslinking groups, activating the crosslinking groups to form the scaffold.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: June 26, 2018
    Assignee: The Board of Trustees for the Leland Stanford Junior University
    Inventors: Fan Yang, Li-Hsin Han, Xinming Tong
  • Publication number: 20180171513
    Abstract: A method for producing microfibers includes the steps of (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and repeating steps (d)-(f) as desired. Different apparatuses for performing the method are also provided.
    Type: Application
    Filed: November 17, 2017
    Publication date: June 21, 2018
    Inventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, Alisa Morss Clyne, Momtaz Alhindi, Jeffrey Krystek, Victor Micucci, Evan Ostrow, Sabah Shafi, Lin Han, Lanziye He
  • Patent number: 9526425
    Abstract: The embodiments disclosed herein is a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: December 27, 2016
    Assignee: Board of Regents, the University of Texas System
    Inventors: Marc D. Feldman, Thomas E. Milner, Jung-Hwan Oh, Eunha Kim, Karathik Kumar, Jonathan C. Condit, Robert Grant, Nathaniel J. Kemp, Jihoon Kim, Shaochen Chen, Li-Hsin Han
  • Publication number: 20160331508
    Abstract: Macroporous 3-D tissue engineering scaffold comprising elastomeric cross-linked polymer units and interconnected macropores containing living cells are produced by step of: in a mixture of the cells and elastomeric polymer units comprising activatable crosslinking groups, activating the crosslinking groups to form the scaffold.
    Type: Application
    Filed: July 29, 2016
    Publication date: November 17, 2016
    Inventors: Fan Yang, Li-Hsin Han, Xinming Tong
  • Patent number: 9415138
    Abstract: Macroporous 3-D tissue engineering scaffold are manufactured by contacting an article comprising multiple distinct macroparticulate porogens distributed within a polymer scaffold, wherein the porogens are selectively and sequentially dissolvable by corresponding biocompatible stimuli.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: August 16, 2016
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Fan Yang, Li-Hsin Han, Xinming Tong
  • Patent number: 9402710
    Abstract: Macroporous 3-D tissue engineering scaffold comprising elastomeric cross-linked polymer units and interconnected macropores containing living cells are produced by step of: in a mixture of the cells and elastomeric polymer units comprising activatable crosslinking groups, activating the crosslinking groups to form the scaffold.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: August 2, 2016
    Assignee: THE BOARD OF TRUSTEES FOR THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Fan Yang, Li-Hsin Han, Xinming Tong
  • Publication number: 20150265152
    Abstract: A catheter imaging probe for a patient. The probe includes a conduit through with energy is transmitted. The probe includes a first portion through which the conduit extends. The probe includes a second portion which rotates relative to the conduit to redirect the energy from the conduit. A method for imaging a patient. The method includes the steps of inserting a catheter into the patient. There is the step of rotating a second portion of the catheter relative to a conduit extending through a first portion of the catheter, which redirects the energy transmitted through the conduit to the patient and receives the energy reflected back to the second portion from the patient and redirects the reflected energy to the conduit.
    Type: Application
    Filed: March 30, 2015
    Publication date: September 24, 2015
    Inventors: Marc D. Feldman, Thomas E. MILNER, Shaochen CHEN, Jihoon KIM, Li-Hsin HAN, Jung Hwan OH, Ho LEE
  • Patent number: 8996099
    Abstract: A catheter imaging probe for a patient. The probe includes a conduit through with energy is transmitted. The probe includes a first portion through which the conduit extends. The probe includes a second portion which rotates relative to the conduit to redirect the energy from the conduit. A method for imaging a patient. The method includes the steps of inserting a catheter into the patient. There is the step of rotating a second portion of the catheter relative to a conduit extending through a first portion of the catheter, which redirects the energy transmitted through the conduit to the patient and receives the energy reflected back to the second portion from the patient and redirects the reflected energy to the conduit.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: March 31, 2015
    Assignee: Board of Regents, The University of Texas System
    Inventors: Marc D. Feldman, Thomas E. Milner, Shaochen Chen, Jihoon Kim, Li-Hsin Han, Jung-hwan Oh, Lee Ho
  • Publication number: 20140161843
    Abstract: Macroporous 3-D tissue engineering scaffold are manufactured by contacting an article comprising multiple distinct macroparticulate porogens distributed within a polymer scaffold, wherein the porogens are selectively and sequentially dissolvable by corresponding biocompatible stimuli.
    Type: Application
    Filed: August 19, 2013
    Publication date: June 12, 2014
    Applicant: Board of Trustees of the Leland Stanford Junior University
    Inventors: Fan Yang, Li-Hsin Han, Xinming Tong
  • Publication number: 20140017284
    Abstract: Macroporous 3-D tissue engineering scaffold comprising elastomeric cross-linked polymer units and interconnected macropores containing living cells are produced by step of: in a mixture of the cells and elastomeric polymer units comprising activatable crosslinking groups, activating the crosslinking groups to form the scaffold.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 16, 2014
    Inventors: Fan Yang, Li-Hsin Han, Xinming Tong
  • Publication number: 20130338495
    Abstract: The embodiments disclosed herein is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 19, 2013
    Applicant: Board of Regents, The University of Texas System
    Inventors: Marc D. Feldman, Thomas E. Milner, Jung-Hwan Oh, Eunha Kim, Karathik Kumar, Jonathan C. Condit, Robert Grant, Nathaniel J. Kemp, Jihoon Kim, Shaochen Chen, Li-Hsin Han
  • Patent number: 8540627
    Abstract: The embodiments disclosed herein is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: September 24, 2013
    Assignee: Board of Regents, The University of Texas System
    Inventors: Marc D. Feldman, Thomas E. Milner, Jung Hwan Oh, Eunha Kim, Karthik Kumar, Chris Condit, Robert Grant, Nate Kemp, Jeehyun Kim, Shaochen Chen, Li-Hsin Han
  • Publication number: 20110275947
    Abstract: Aspects according to the present invention provide a method and implant suitable for implantation inside a human body that includes a power consuming means responsive to a physiological requirement of the human body, a power source and a power storage device. The power source comprises a piezoelectric assembly that is configured to generate an electrical current when flexed by the tissue of the body and communicate the generated current to the power storage device, which is electrically coupled to the power source and to the power consuming means.
    Type: Application
    Filed: March 7, 2011
    Publication date: November 10, 2011
    Applicant: Board of Regents, The University of Texas System
    Inventors: Marc D. Feldman, Shaochen Chen, Li-Hsin Han, Carlos A. Aguilar, Arturo A. Ayon, C. Mauli A Grawal, David M. Lighthart, Devang N. Patel, Steven R. Bailey, Brian A. Korgel, Doh C. Lee, Tushar Sharma, Christopher J. Ellison, Xiaojing Zhang
  • Publication number: 20110009701
    Abstract: The embodiments disclosed herein is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically.
    Type: Application
    Filed: July 7, 2010
    Publication date: January 13, 2011
    Applicant: Board of Regents, The University of Texas System
    Inventors: Marc D. Feldman, Thomas E. Milner, Jung Hwan Oh, Eunha Kim, Karthik Kumar, Chris Condit, Robert Grant, Nate Kemp, Jeehyun Kim, Shaochen Chen, Li-Hsin Han
  • Patent number: 7783337
    Abstract: An apparatus is disclosed for studying an object based on at least one of polarization, space, position or angle of light that has reflected from the object. An optical tomographic instrumentation of the apparatus includes a light source coupled to a source path, a sample path, a reference path, and a detection path, wherein the light source generates a spectrally resolved bandwidth. The spectrally resolved bandwidth includes a plurality of spectrally resolved cells and a detector in the detection path for analyzing light reflected from an object in the sample path and the light reflected in the reference path based upon at least one of the polarization, spatial relationship, position or angle domains.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: August 24, 2010
    Assignee: Board of Regents, The University of Texas System
    Inventors: Marc D. Feldman, Thomas E. Milner, Jung Hwan Oh, Eunha Kim, Karthik Kumar, Chris Condit, Robert Grant, Nate Kemp, Jeehyun Kim, Shaochen Chen, Li-Hsin Han
  • Publication number: 20100168587
    Abstract: A catheter imaging probe for a patient. The probe includes a conduit through with energy is transmitted. The probe includes a first portion through which the conduit extends. The probe includes a second portion which rotates relative to the conduit to redirect the energy from the conduit. A method for imaging a patient. The method includes the steps of inserting a catheter into the patient. There is the step of rotating a second portion of the catheter relative to a conduit extending through a first portion of the catheter, which redirects the energy transmitted through the conduit to the patient and receives the energy reflected back to the second portion from the patient and redirects the reflected energy to the conduit.
    Type: Application
    Filed: December 15, 2009
    Publication date: July 1, 2010
    Applicant: Board of Regents, the University of Texas System
    Inventors: Marc D. Feldman, Thomas E. Milner, Shaochen Chen, Jeehyun Kim, Li-Hsin Han, Jung-Hwan Oh, Ho Lee