Patents by Inventor Bruce A. Finnigan

Bruce A. Finnigan 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: 7168952
    Abstract: An endodontic post comprises a combined endodontic post and tip of filling material such as thermoplastic material in a single unit. Obuturating systems are provided by an endodontic carrier and attached filling material. The post and obturator include a protrusion or depression on the tip section of the device for better attachment of the filling material to the device. Alternatively the post and obuturator are fabricated of a tube having a tunnel extending therethrough into which filling material is injected. The filling material extends out of the apical section of the post and obturator to form a filler cone.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: January 30, 2007
    Assignees: Pentron Clinical Technologies, LLC
    Inventors: Ajit Karmaker, Larry A. Lopez, Bruce Alpert, Bruce A. Finnigan
  • Patent number: 7163401
    Abstract: An endodontic post comprises a combined endodontic post and tip of filling material such as thermoplastic material in a single unit. Obuturating systems are provided by an endodontic carrier and attached filling material. The post and obturator include a protrusion or depression on the tip section of the device for better attachment of the filling material to the device. Alternatively the post and obuturator are fabricated of a tube having a tunnel extending therethrough into which filling material is injected. The filling material extends out of the apical section of the post and obturator to form a filler cone.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: January 16, 2007
    Assignee: Pentron Clinical Technologies, LLC
    Inventors: Ajit Karmaker, Larry A. Lopez, Bruce Alpert, Bruce A. Finnigan
  • Patent number: 7086864
    Abstract: An endodontic post comprising a combined endodontic post and filling material tip in a single unit. To use the post unit, the device is placed in an oven or heater to heat and soften the thermoplastic material. The device will then be placed in a root canal that has been opened to a predetermined dimension by use of endodontic files, to seal the apical end. If necessary, the gutta percha can be compacted toward the apex, while it is still in the softened state, to ensure the apex is adequately sealed. The post is then cemented into place by lining the canal walls with a bonding agent and filling the interface between the post and the walls of the canal with a dual cure resin cement. This will result in a coronal seal of the canal via resin restorative material and an apical seal of the canal by means of gutta percha and sealant. The remaining portion of the post, extending supra-gingivally, will be used to build a core around it. Any excess will be cut off.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: August 8, 2006
    Assignees: Pentron Clinical Technologies, LLC
    Inventors: Larry A. Lopez, Bruce A. Finnigan, Ajit Karmaker, Bruce Alpert, Weitao Jia
  • Publication number: 20050003328
    Abstract: An endodontic post comprises a combined endodontic post and tip of filling material such as thermoplastic material in a single unit. Obuturating systems are provided by an endodontic carrier and attached filling material. The post and obturator include a protrusion or depression on the tip section of the device for better attachment of the filling material to the device. Alternatively the post and obuturator are fabricated of a tube having a tunnel extending therethrough into which filling material is injected. The filling material extends out of the apical section of the post and obturator to form a filler cone.
    Type: Application
    Filed: August 1, 2003
    Publication date: January 6, 2005
    Inventors: Ajit Karmaker, Larry Lopez, Bruce Alpert, Bruce Finnigan
  • Publication number: 20040265783
    Abstract: An endodontic post comprises a combined endodontic post and tip of filling material such as thermoplastic material in a single unit. Obuturating systems are provided by an endodontic carrier and attached filling material. The post and obturator include a protrusion or depression on the tip section of the device for better attachment of the filling material to the device. Alternatively the post and obuturator are fabricated of a tube having a tunnel extending therethrough into which filling material is injected. The filling material extends out of the apical section of the post and obturator to form a filler cone.
    Type: Application
    Filed: August 1, 2003
    Publication date: December 30, 2004
    Inventors: Ajit Karmaker, Larry A. Lopez, Bruce Alpert, Bruce A. Finnigan
  • Publication number: 20040248067
    Abstract: An endodontic post comprising a combined endodontic post and filling material tip in a single unit. To use the post unit, the device is placed in an oven or heater to heat and soften the thermoplastic material. The device will then be placed in a root canal that has been opened to a predetermined dimension by use of endodontic files, to seal the apical end. If necessary, the gutta percha can be compacted toward the apex, while it is still in the softened state, to ensure the apex is adequately sealed. The post is then cemented into place by lining the canal walls with a bonding agent and filling the interface between the post and the walls of the canal with a dual cure resin cement. This will result in a coronal seal of the canal via resin restorative material and an apical seal of the canal by means of gutta percha and sealant. The remaining portion of the post, extending supra-gingivally, will be used to build a core around it. Any excess will be cut off.
    Type: Application
    Filed: June 6, 2002
    Publication date: December 9, 2004
    Inventors: Larry A. Lopez, Bruce A. Finnigan, Ajit Karmaker, Bruce Alpert, Weitao Jia
  • Patent number: 6447297
    Abstract: An endodontic post comprising a combined endodontic post and filling material tip in a single unit. To use the post unit, the device is placed in an oven or heater to heat and soften the thermoplastic material. The device will then be placed in a root canal that has been opened to a predetermined dimension by use of endodontic files, to seal the apical end. If necessary, the gutta percha can be compacted toward the apex, while it is still in the softened state, to ensure the apex is adequately sealed. The post is then cemented into place by lining the canal walls with a bonding agent and filling the interface between the post and the walls of the canal with a dual cure resin cement. This will result in a coronal seal of the canal via resin restorative material and an apical seal of the canal by means of gutta percha and sealant. The remaining portion of the post, extending supra-gingivally, will be used to build a core around it. Any excess will be cut off.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: September 10, 2002
    Assignees: Jeneric/Pentron, Inc.
    Inventors: Larry A. Lopez, Bruce A. Finnigan, Ajit Karmaker
  • Patent number: 6428319
    Abstract: An endodontic post comprising a combined endodontic post and filling material tip in a single unit. To use the post unit, the device is placed in an oven or heater to heat and soften the thermoplastic material. The device will then be placed in a root canal that has been opened to a predetermined dimension by use of endodontic files, to seal the apical end. If necessary, the gutta percha can be compacted toward the apex, while it is still in the softened state, to ensure the apex is adequately sealed. The post is then cemented into place by lining the canal walls with a bonding agent and filling the interface between the post and the walls of the canal with a dual cure resin cement. This will result in a coronal seal of the canal via resin restorative material and an apical seal of the canal by means of gutta percha and sealant. The remaining portion of the post, extending supra-gingivally, will be used to build a core around it. Any excess will be cut off.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: August 6, 2002
    Assignees: Jeneric/Pentron, Inc.
    Inventors: Larry A. Lopez, Bruce A. Finnigan, Ajit Karmaker