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).
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Publication number: 20180193125Abstract: 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: ApplicationFiled: December 26, 2017Publication date: July 12, 2018Inventors: Wei-Hsang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
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Publication number: 20180193126Abstract: 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: ApplicationFiled: December 26, 2017Publication date: July 12, 2018Inventors: Wei-Hsang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
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Patent number: 9908296Abstract: 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: GrantFiled: December 12, 2016Date of Patent: March 6, 2018Assignee: Vertera SpineInventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
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Patent number: 9855709Abstract: 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: GrantFiled: January 13, 2017Date of Patent: January 2, 2018Assignee: VERTERA, INC.Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
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Patent number: 9848973Abstract: 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: GrantFiled: November 28, 2016Date of Patent: December 26, 2017Assignee: VERTERA, INCInventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
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Publication number: 20170312949Abstract: 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: ApplicationFiled: July 18, 2017Publication date: November 2, 2017Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S.D. Lee
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Patent number: 9764502Abstract: 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: GrantFiled: November 10, 2016Date of Patent: September 19, 2017Assignee: VERTERA, INC.Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee
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Publication number: 20170202511Abstract: 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: ApplicationFiled: April 5, 2017Publication date: July 20, 2017Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
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Publication number: 20170129190Abstract: 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: ApplicationFiled: January 13, 2017Publication date: May 11, 2017Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
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Patent number: 9622847Abstract: 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: GrantFiled: April 27, 2016Date of Patent: April 18, 2017Assignee: VERTERA, INC.Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
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Publication number: 20170087776Abstract: 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: ApplicationFiled: December 12, 2016Publication date: March 30, 2017Inventors: Wei-Hsiang CHANG, Stephen Lee Laffoon, Christopher S.D. Lee, David Lee Safranski
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Publication number: 20170071717Abstract: 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: ApplicationFiled: November 28, 2016Publication date: March 16, 2017Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
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Publication number: 20170071718Abstract: 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: ApplicationFiled: November 28, 2016Publication date: March 16, 2017Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
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Publication number: 20170057128Abstract: 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: ApplicationFiled: November 10, 2016Publication date: March 2, 2017Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S.D. Lee
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Patent number: 9517593Abstract: 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: GrantFiled: December 30, 2015Date of Patent: December 13, 2016Assignee: VERTERA, INC.Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
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Patent number: 9504550Abstract: 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: GrantFiled: June 26, 2015Date of Patent: November 29, 2016Assignee: VERTERA, INC.Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski
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Patent number: 9498922Abstract: 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: GrantFiled: December 30, 2015Date of Patent: November 22, 2016Assignee: VERTERA, INC.Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee
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Publication number: 20160235516Abstract: 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: ApplicationFiled: April 27, 2016Publication date: August 18, 2016Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
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Publication number: 20160237236Abstract: 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: ApplicationFiled: April 27, 2016Publication date: August 18, 2016Inventors: Wei-Hsiang CHANG, Stephen Lee LAFFOON, Christopher S.D. LEE, David Lee SAFRANSKI
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Patent number: D815281Type: GrantFiled: June 23, 2015Date of Patent: April 10, 2018Assignee: Vertera, Inc.Inventors: Wei-Hsiang Chang, Stephen Lee Laffoon, Christopher S. D. Lee, David Lee Safranski