Patents by Inventor Randall Rex Calvert

Randall Rex Calvert 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).

  • Apparatus and method for root canal obturation
    Patent number: 8414297
    Abstract: The present invention is directed to root canal obturation in a tooth. In one embodiment, a plug is positioned in a root canal and bonded to the root canal by applying a light-curing adhesive to the canal and exposing the plug to a light source to bond the plug to the root canal. In another embodiment, a carrier is disclosed having an optically transmissive plug portion for insertion into the canal. In still another embodiment, the plug portion of the carrier includes an optical fiber to transmit light from a light source into the plug portion. In still yet another embodiment, a filler material is heated and injected into the root canal in a semi-liquid state and exposed to light to cure the adhesive.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: April 9, 2013
    Assignee: Randall Rex Calvert
    Inventor: Randall Rex Calvert
  • APPARATUS AND METHOD FOR ROOT CANAL OBTURATION
    Publication number: 20110300513
    Abstract: The present invention is directed to root canal obturation in a tooth. In one embodiment, a plug is positioned in a root canal and bonded to the root canal by applying a light-curing adhesive to the canal and exposing the plug to a light source to bond the plug to the root canal. In another embodiment, a carrier is disclosed having an optically transmissive plug portion for insertion into the canal. In still another embodiment, the plug portion of the carrier includes an optical fiber to transmit light from a light source into the plug portion. In still yet another embodiment, a filler material is heated and injected into the root canal in a semi-liquid state and exposed to light to cure the adhesive.
    Type: Application
    Filed: August 17, 2011
    Publication date: December 8, 2011
    Inventor: Randall Rex Calvert
  • APPARATUS AND METHOD FOR ROOT CANAL OBTURATION
    Publication number: 20090047634
    Abstract: The present invention is directed to root canal obturation in a tooth. In one embodiment, a plug is positioned in a root canal and bonded to the root canal by applying a light-curing adhesive to the canal and exposing the plug to a light source to bond the plug to the root canal. In another embodiment, a carrier is disclosed having an optically transmissive plug portion for insertion into the canal. In still another embodiment, the plug portion of the carrier includes an optical fiber to transmit light from a light source into the plug portion. In still yet another embodiment, a filler material is heated and injected into the root canal in a semi-liquid state and exposed to light to cure the adhesive.
    Type: Application
    Filed: September 18, 2008
    Publication date: February 19, 2009
    Inventor: Randall Rex Calvert
  • Apparatus and method for root canal obturation
    Patent number: 7125254
    Abstract: The present invention is directed to root canal obturation in a tooth. In one embodiment, a plug is positioned in a root canal and bonded to the root canal by applying a light-curing adhesive to the canal and exposing the plug to a light source to bond the plug to the root canal. In another embodiment, a carrier is disclosed having an optically transmissive plug portion for insertion into the canal. In still another embodiment, the plug portion of the carrier includes an optical fiber to transmit light from a light source into the plug portion. In still yet another embodiment, a filler material is heated and injected into the root canal in a semi-liquid state and exposed to light to cure the adhesive.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: October 24, 2006
    Inventor: Randall Rex Calvert
  • Apparatus and method for root canal obturation
    Publication number: 20030124482
    Abstract: The present invention is directed to root canal obturation in a tooth. In one embodiment, a plug is positioned in a root canal and bonded to the root canal by applying a light-curing adhesive to the canal and exposing the plug to a light source to bond the plug to the root canal. In another embodiment, a carrier is disclosed having an optically transmissive plug portion for insertion into the canal. In still another embodiment, the plug portion of the carrier includes an optical fiber to transmit light from a light source into the plug portion. In still yet another embodiment, a filler material is heated and injected into the root canal in a semi-liquid state and exposed to light to cure the adhesive.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Inventor: Randall Rex Calvert