Patents by Inventor Harry A. McKellop

Harry A. McKellop 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: 9302028
    Abstract: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 5, 2016
    Assignee: ORTHOPAEDIC HOSPITAL
    Inventors: Harry A. McKellop, Fu-Wen Shen
  • Patent number: 9242025
    Abstract: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: January 26, 2016
    Assignee: ORTHOPAEDIC HOSPITAL
    Inventors: Harry A. McKellop, Fu-Wen Shen
  • Publication number: 20160015319
    Abstract: A monitoring apparatus for a human body includes a node network with at least one motion sensor and at least one acoustic sensor. A processor is coupled to the node network, and receives motion information and acoustic information from the node network. The processor determines from the motion information and the acoustic information a source of acoustic emissions within the human body by analyzing the acoustic information in the time domain to identify an event envelope representing an acoustic event, determining a feature vector related to the event envelope, calculating a distance between the feature vector and each of a set of predetermined event silhouettes, and identifying one of the predetermined event silhouettes for which the distance is a minimum.
    Type: Application
    Filed: March 6, 2014
    Publication date: January 21, 2016
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Fabrizio BILLI, Per Henrik BORGSTROM, William KAISER, Harry A. MCKELLOP
  • Patent number: 9155817
    Abstract: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: October 13, 2015
    Assignee: Orthopaedic Hospital
    Inventors: Harry A. McKellop, Fu-Wen Shen
  • Publication number: 20150096264
    Abstract: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 9, 2015
    Inventors: Harry A. McKellop, Fu-Wen Shen
  • Publication number: 20150007527
    Abstract: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.
    Type: Application
    Filed: September 17, 2014
    Publication date: January 8, 2015
    Inventors: Harry A. McKellop, Fu-Wen Shen
  • Publication number: 20140235745
    Abstract: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Inventors: Harry A. McKellop, Fu-Wen Shen
  • Patent number: 8796347
    Abstract: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: August 5, 2014
    Assignee: Orthopaedic Hospital
    Inventors: Harry A. McKellop, Fu-Wen Shen
  • Patent number: 8658710
    Abstract: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: February 25, 2014
    Assignee: Orthopaedic Hospital
    Inventors: Harry A. McKellop, Fu-Wen Shen
  • Patent number: 8008365
    Abstract: The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: August 30, 2011
    Assignee: Orthopaedic Hospital
    Inventors: Fu-Wen Shen, Harry A. McKellop, Ronald Salovey
  • Patent number: 8003709
    Abstract: The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: August 23, 2011
    Assignee: Orthopaedic Hospital
    Inventors: Fu-Wen Shen, Harry A. McKellop, Ronald Salovey
  • Publication number: 20080133021
    Abstract: The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Inventors: Fu-Wen Shen, Harry A. McKellop, Ronald Salovey
  • Publication number: 20080133018
    Abstract: The present invention discloses a method for enhancing the wear-resistance of polymers by crosslinking them, especially before irradiation sterilization. In particular, this invention presents the use of chemically crosslinked ultrahigh molecular weight polyethylene in in vivo implants.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Inventors: Ronald Salovey, Harry A. McKellop, Fu-Wen Shen
  • Publication number: 20070293647
    Abstract: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.
    Type: Application
    Filed: May 24, 2007
    Publication date: December 20, 2007
    Inventors: Harry McKellop, Fu-Wen Shen
  • Publication number: 20070100017
    Abstract: The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant.
    Type: Application
    Filed: December 4, 2006
    Publication date: May 3, 2007
    Inventors: Fu-Wen Shen, Harry McKellop, Ronald Salovey
  • Publication number: 20050125074
    Abstract: The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant.
    Type: Application
    Filed: November 4, 2004
    Publication date: June 9, 2005
    Inventors: Ronald Salovey, Harry McKellop, Fu-Wen Shen
  • Publication number: 20050048096
    Abstract: The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 3, 2005
    Inventors: Fu-Wen Shen, Harry McKellop, Ronald Salovey
  • Publication number: 20040266902
    Abstract: The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant.
    Type: Application
    Filed: May 30, 2004
    Publication date: December 30, 2004
    Inventors: Fu-Wen Shen, Harry A. McKellop, Ronald Salovey
  • Publication number: 20040208841
    Abstract: The present invention discloses a method for enhancing the wear-resistance of polymers by crosslinking them, especially before irradiation sterilization. In particular, this invention presents the use of chemically crosslinked ultrahigh molecular weight polyethylene in in vivo implants.
    Type: Application
    Filed: January 3, 2004
    Publication date: October 21, 2004
    Inventors: Ronald Salovey, Harry A. McKellop, Fu-Wen Shen
  • Patent number: 6800670
    Abstract: The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: October 5, 2004
    Assignees: Orthopaedic Hospital, University of Southern California
    Inventors: Fu-Wen Shen, Harry A. McKellop, Ronald Salovey