Patents by Inventor Ronald Salovey

Ronald Salovey 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: 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: 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
  • Publication number: 20030158287
    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: September 17, 2002
    Publication date: August 21, 2003
    Inventors: Ronald Salovey, Harry A. McKellop, Fu-Wen Shen
  • Publication number: 20030045603
    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 3, 2002
    Publication date: March 6, 2003
    Applicant: The Orthopaedic Hospital and University of Southern California
    Inventors: Ronald Salovey, Harry A. McKellop, Fu-Wen Shen
  • Patent number: 6482870
    Abstract: A new method for crosslinking polyethylene oxide (PEO) by means of a dialkyl peroxide to form a gel, which can imbibe large amounts of water. Two separate ovens were used to crosslink PEO with the peroxide. The first oven is set at 85° C. for 2.5 minutes for melting the polymer and purging oxygen with acetone vapors and forming a shield around the sample to minimize oxygen diffusion from outside, meanwhile, trapping peroxides inside. A second oven was used to thermally decompose the peroxide. The crosslinking reaction proceeds at 160° C. for 15 minutes.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: November 19, 2002
    Inventors: Shahriar Hojjati Emami, Ronald Salovey
  • Publication number: 20020037944
    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: February 26, 2001
    Publication date: March 28, 2002
    Applicant: The Orthopaedic Hospital
    Inventors: Fu-Wen Shen, Harry A. McKellop, Ronald Salovey
  • Publication number: 20010049401
    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: July 2, 2001
    Publication date: December 6, 2001
    Applicant: The Orthopaedic Hospital and University of Southern California
    Inventors: Ronald Salovey, Harry A. McKellop, Fu-Wen Shen
  • Patent number: 6281264
    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: Grant
    Filed: September 27, 1999
    Date of Patent: August 28, 2001
    Assignees: The Orthopaedic Hospital, University of Southern California
    Inventors: Ronald Salovey, Harry A. McKellop, Fu-Wen Shen
  • Patent number: 6228900
    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: January 6, 1999
    Date of Patent: May 8, 2001
    Assignee: The Orthopaedic Hospital and University of Southern California
    Inventors: Fu-Wen Shen, Harry A. McKellop, Ronald Salovey