Patents by Inventor Warren Grayson

Warren Grayson 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: 11925725
    Abstract: An extracellular matrix (ECM) mixture and ECM scaffolds made with same are disclosed. The ECM mixture can comprise from about 5% to about 85% by weight of ECM material and from about 15% to about 95% by weight of a polymer material, such as, but not limited to, a biodegradable polyester. The presently disclosed anatomically-shaped porous ECM scaffolds can be formed, for example, using a three-dimensional (3D) printing process, an injection molding process, or any other process.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: March 12, 2024
    Assignee: JOHNS HOPKINS UNIVERSITY
    Inventors: Warren Grayson, Jennifer Elisseeff, Ben Hung, Ethan Nyberg, Tram Nguyen
  • Publication number: 20230173243
    Abstract: Devices and methods for delivering oxygen and other therapeutic gases to a target, such as a tissue, a tissue-engineered construct, and a wound, in a controlled and sustained manner are disclosed.
    Type: Application
    Filed: February 1, 2023
    Publication date: June 8, 2023
    Inventors: Colin Cook, Warren Grayson
  • Patent number: 11596780
    Abstract: Devices and methods for delivering oxygen and other therapeutic gases to a target, such as a tissue, a tissue-engineered construct, and a wound, in a controlled and sustained manner are disclosed.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: March 7, 2023
    Assignee: The Johns Hopkins University
    Inventors: Colin Cook, Warren Grayson
  • Publication number: 20230026247
    Abstract: An anatomically-shaped, human bone graft may be cultivated ex vivo using a bioreactor capable of perfusing large complex porous scaffolds. Scaffolds derived from image-based modeling of a target are seeded with human mesenchymal stem cells and cultivated. A bioreactor configured to house complex three-dimensional scaffold geometries provides controlled flow for perfusion of the cells. Dense uniform cellular growth can be attained throughout the entire scaffold as a result of the medium perfusion. In an embodiment, the bioreactor has a mold into which perfusion medium is pumped under pressure and multiple ports through which the medium exits the mold.
    Type: Application
    Filed: August 18, 2022
    Publication date: January 26, 2023
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Gordana Vunjak-Novakovic, Warren Grayson, Keith Yeager
  • Patent number: 11464640
    Abstract: An anatomically-shaped, human bone graft may be cultivated ex vivo using a bioreactor capable of perfusing large complex porous scaffolds. Scaffolds derived from image-based modeling of a target are seeded with human mesenchymal stem cells and cultivated. A bioreactor configured to house complex three-dimensional scaffold geometries provides controlled flow for perfusion of the cells. Dense uniform cellular growth can be attained throughout the entire scaffold as a result of the medium perfusion. In an embodiment, the bioreactor has a mold into which perfusion medium is pumped under pressure and multiple ports through which the medium exits the mold.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: October 11, 2022
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Gordana Vunjak-Novakovic, Warren Grayson, Keith Yeager
  • Publication number: 20200121464
    Abstract: An anatomically-shaped, human bone graft may be cultivated ex vivo using a bioreactor capable of perfusing large complex porous scaffolds. Scaffolds derived from image-based modeling of a target are seeded with human mesenchymal stem cells and cultivated. A bioreactor configured to house complex three-dimensional scaffold geometries provides controlled flow for perfusion of the cells. Dense uniform cellular growth can be attained throughout the entire scaffold as a result of the medium perfusion. In an embodiment, the bioreactor has a mold into which perfusion medium is pumped under pressure and multiple ports through which the medium exits the mold.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Gordana Vunjak-Novakovic, Warren Grayson, Keith Yeager
  • Patent number: 10517731
    Abstract: An anatomically-shaped, human bone graft may be cultivated ex vivo using a bioreactor capable of perfusing large complex porous scaffolds. Scaffolds derived from image-based modeling of a target are seeded with human mesenchymal stem cells and cultivated. A bioreactor configured to house complex three-dimensional scaffold geometries provides controlled flow for perfusion of the cells. Dense uniform cellular growth can be attained throughout the entire scaffold as a result of the medium perfusion. In an embodiment, the bioreactor has a mold into which perfusion medium is pumped under pressure and multiple ports through which the medium exits the mold.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: December 31, 2019
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Gordana Vunjak-Novakovic, Warren Grayson, Keith Yeager
  • Publication number: 20180185547
    Abstract: An extracellular matrix (ECM) mixture and ECM scaffolds made with same are disclosed. The ECM mixture can comprise from about 5% to about 85% by weight of ECM material and from about 15% to about 95% by weight of a polymer material, such as, but not limited to, a biodegradable polyester. The presently disclosed anatomically-shaped porous ECM scaffolds can be formed, for example, using a three-dimensional (3D) printing process, an injection molding process, or any other process.
    Type: Application
    Filed: June 24, 2016
    Publication date: July 5, 2018
    Inventors: WARREN GRAYSON, JENNIFER ELISSEEFF, BEN HUNG, ETHAN NYBERG
  • Publication number: 20170290665
    Abstract: An anatomically-shaped, human bone graft may be cultivated ex vivo using a bioreactor capable of perfusing large complex porous scaffolds. Scaffolds derived from image-based modeling of a target are seeded with human mesenchymal stem cells and cultivated. A bioreactor configured to house complex three-dimensional scaffold geometries provides controlled flow for perfusion of the cells. Dense uniform cellular growth can be attained throughout the entire scaffold as a result of the medium perfusion. In an embodiment, the bioreactor has a mold into which perfusion medium is pumped under pressure and multiple ports through which the medium exits the mold.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 12, 2017
    Inventors: Gordana Vunjak-Novakovic, Warren Grayson, Keith Yeager
  • Publication number: 20160114145
    Abstract: Devices and methods for delivering oxygen and other therapeutic gases to a target, such as a tissue, a tissue-engineered construct, and a wound, in a controlled and sustained manner are disclosed.
    Type: Application
    Filed: May 28, 2014
    Publication date: April 28, 2016
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: COLIN COOK, WARREN GRAYSON
  • Publication number: 20160095958
    Abstract: The presently disclosed subject matter focuses on recapitulating the heterotypic interactions needed to maximize the co-development of vasculature and bone. More particularly, the presently disclosed subject matter explores the potential of cellular aggregation and temporal presentation of factors to induce the cell-cell signaling events required to stimulate ASCs to self-organize into vascularized bone. Further, exogenous PDGF-BB synergizes complex tissue formation in ASC cultures by enhancing vascular stability and osteogenic differentiation. The presently disclosed approach provides a robust protocol to engineer vascularized bone with ASCs in vitro.
    Type: Application
    Filed: May 28, 2014
    Publication date: April 7, 2016
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: WARREN GRAYSON, COLIN COOK, BEN P.J. HUNG, PINAR HURI, DAPHNE L. HUTTON, JOSHUA TEMPLE
  • Publication number: 20160053214
    Abstract: Disclosed are bioreactor devices, systems and methods. A bioreactor system can include one or more bioreactor modules that can be individually controllable and identifiable. A bioreactor module can be connected to one or more functional modules such as a pump module, a stimulation signal generation module, a motor module, a mechanical transmission module, a gas exchange module, a temperature module, a humidity module and/or a CO2 module, among others. The bioreactor and functional modules can include standard or universal connectors to facilitate connection and movement of modules. The bioreactor system can be controlled and/or monitored by a controller that can individually identify and control each connected module and that can be adapted to collect signal data from sensors embedded in any of the modules.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Inventors: Gordana VUNJAK-NOVAKOVIC, Warren GRAYSON, Qun WAN, Donald O. FREYTES, Amandine GODIER-FURNEMONT, Nina TANDON, Keith YEAGER, George ENG, Sarindr BHUMIRATANA, Robert MAIDHOF
  • Patent number: 9206383
    Abstract: Disclosed are bioreactor devices, systems and methods. A bioreactor system can include one or more bioreactor modules that can be individually controllable and identifiable. A bioreactor module can be connected to one or more functional modules such as a pump module, a stimulation signal generation module, a motor module, a mechanical transmission module, a gas exchange module, a temperature module, a humidity module and/or a CO2 module, among others. The bioreactor and functional modules can include standard or universal connectors to facilitate connection and movement of modules. The bioreactor system can be controlled and/or monitored by a controller that can individually identify and control each connected module and that can be adapted to collect signal data from sensors embedded in any of the modules.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: December 8, 2015
    Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Gordana Vunjak-Novakovic, Warren Grayson, Qun Wan, Donald O. Freytes, Amandine Godier-Furnémont, Nina Tandon, Keith Yeager, George Eng, Sarindr Bhumiratana, Robert Maidhof
  • Publication number: 20110136225
    Abstract: Disclosed are bioreactor devices, systems and methods. A bioreactor system can include one or more bioreactor modules that can be individually controllable and identifiable. A bioreactor module can be connected to one or more functional modules such as a pump module, a stimulation signal generation module, a motor module, a mechanical transmission module, a gas exchange module, a temperature module, a humidity module and/or a CO2 module, among others. The bioreactor and functional modules can include standard or universal connectors to facilitate connection and movement of modules. The bioreactor system can be controlled and/or monitored by a controller that can individually identify and control each connected module and that can be adapted to collect signal data from sensors embedded in any of the modules.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 9, 2011
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Gordana Vunjak-Novakovic, Warren Grayson, Qun Wan, Donald Freytes, Amandine Godier-Furnémont, Nina Tandon, Keith Yeager, George Eng, Sarindr Bhumiratana, Robert Maidhof