Patents by Inventor Christopher S.D. Lee

Christopher S.D. Lee 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: 20180193125
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Application
    Filed: December 26, 2017
    Publication date: July 12, 2018
    Inventors: Wei-Hsang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
  • Publication number: 20180193126
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Application
    Filed: December 26, 2017
    Publication date: July 12, 2018
    Inventors: Wei-Hsang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
  • Patent number: 9908296
    Abstract: In general, in various embodiments, the present disclosure is directed systems and methods for producing a porous surface from a solid piece of polymer. In particular, the present disclosure is directed to systems that include a track assembly, mold assembly, press assembly, and methods for using the same for producing a porous surface from a solid piece of polymer. In some embodiments, the present systems and methods are directed to processing a polymer at a temperature below a melting point of the polymer to produce a solid piece of polymer with an integrated a porous surface.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: March 6, 2018
    Assignee: Vertera Spine
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
  • Patent number: 9855709
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature below a melting point of the polymer and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: January 2, 2018
    Assignee: VERTERA, INC.
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
  • Patent number: 9848973
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: December 26, 2017
    Assignee: VERTERA, INC
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
  • Publication number: 20170312949
    Abstract: In general, in various embodiments, the present disclosure is directed systems and methods for producing a porous surface from a solid piece of polymer. In particular, the present disclosure is directed to systems that include a track assembly, mold assembly, press assembly, and methods for using the same for producing a porous surface from a solid piece of polymer. In some embodiments, the present systems and methods are directed to processing a polymer at a temperature below a melting point of the polymer to produce a solid piece of polymer with an integrated a porous surface.
    Type: Application
    Filed: July 18, 2017
    Publication date: November 2, 2017
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S.D. Lee
  • Patent number: 9764502
    Abstract: In general, in various embodiments, the present disclosure is directed systems and methods for producing a porous surface from a solid piece of polymer. In particular, the present disclosure is directed to systems that include a track assembly, mold assembly, press assembly, and methods for using the same for producing a porous surface from a solid piece of polymer. In some embodiments, the present systems and methods are directed to processing a polymer at a temperature below a melting point of the polymer to produce a solid piece of polymer with an integrated a porous surface.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: September 19, 2017
    Assignee: VERTERA, INC.
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee
  • Publication number: 20170202511
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Application
    Filed: April 5, 2017
    Publication date: July 20, 2017
    Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
  • Publication number: 20170129190
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature below a melting point of the polymer and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Application
    Filed: January 13, 2017
    Publication date: May 11, 2017
    Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
  • Patent number: 9622847
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature below a melting point of the polymer and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: April 18, 2017
    Assignee: VERTERA, INC.
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
  • Publication number: 20170087776
    Abstract: In general, in various embodiments, the present disclosure is directed systems and methods for producing a porous surface from a solid piece of polymer. In particular, the present disclosure is directed to systems that include a track assembly, mold assembly, press assembly, and methods for using the same for producing a porous surface from a solid piece of polymer. In some embodiments, the present systems and methods are directed to processing a polymer at a temperature below a melting point of the polymer to produce a solid piece of polymer with an integrated a porous surface.
    Type: Application
    Filed: December 12, 2016
    Publication date: March 30, 2017
    Inventors: Wei-Hsiang CHANG, Stephen Lee Laffoon, Christopher S.D. Lee, David Lee Safranski
  • Publication number: 20170071717
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
  • Publication number: 20170071718
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
  • Publication number: 20170057128
    Abstract: In general, in various embodiments, the present disclosure is directed systems and methods for producing a porous surface from a solid piece of polymer. In particular, the present disclosure is directed to systems that include a track assembly, mold assembly, press assembly, and methods for using the same for producing a porous surface from a solid piece of polymer. In some embodiments, the present systems and methods are directed to processing a polymer at a temperature below a melting point of the polymer to produce a solid piece of polymer with an integrated a porous surface.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 2, 2017
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S.D. Lee
  • Patent number: 9517593
    Abstract: In general, in various embodiments, the present disclosure is directed systems and methods for producing a porous surface from a solid piece of polymer. In particular, the present disclosure is directed to systems that include a track assembly, mold assembly, press assembly, and methods for using the same for producing a porous surface from a solid piece of polymer. In some embodiments, the present systems and methods are directed to processing a polymer at a temperature below a melting point of the polymer to produce a solid piece of polymer with an integrated a porous surface.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: December 13, 2016
    Assignee: VERTERA, INC.
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
  • Patent number: 9504550
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: November 29, 2016
    Assignee: VERTERA, INC.
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
  • Patent number: 9498922
    Abstract: In general, in various embodiments, the present disclosure is directed systems and methods for producing a porous surface from a solid piece of polymer. In particular, the present disclosure is directed to systems that include a track assembly, mold assembly, press assembly, and methods for using the same for producing a porous surface from a solid piece of polymer. In some embodiments, the present systems and methods are directed to processing a polymer at a temperature below a melting point of the polymer to produce a solid piece of polymer with an integrated a porous surface.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: November 22, 2016
    Assignee: VERTERA, INC.
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee
  • Publication number: 20160235516
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature below a melting point of the polymer and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
  • Publication number: 20160237236
    Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature below a melting point of the polymer and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
    Type: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
  • Patent number: D815281
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 10, 2018
    Assignee: Vertera, Inc.
    Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski