Patents Assigned to Idex Dental Sciences, Inc.
  • Patent number: 6536628
    Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: March 25, 2003
    Assignees: Idex Dental Sciences, Inc.
    Inventor: R. Eric Montgomery
  • Patent number: 6514543
    Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: February 4, 2003
    Assignees: Idex Dental Sciences, Inc.
    Inventor: Robert Eric Montgomery
  • Patent number: 6488914
    Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: December 3, 2002
    Assignees: Idex Dental Science, Inc.
    Inventor: R. Eric Montgomery
  • Patent number: 6479037
    Abstract: A composition having an effective dosage of chlorine dioxide for causing a visible change in the whiteness of a tooth surface is disclosed. The composition includes a first formulation having a chlorine dioxide precursor and a second formulation having an acidulant capable of generating chlorine dioxide upon contact with the precursor. Upon admixture of the first and second formulations to produce chlorine dioxide, the composition has a pH in the range of from about 3.0 to about 4.5. To whiten teeth, the first and second formulations may be mixed with one another prior to application of the resulting mixture to the teeth. Alternatively, one of the first and second formulations may initially be applied to the teeth prior to the application of the remaining formulation. The inventive composition is formulated to cause a visible change in the whiteness of a tooth surface in a relatively short period of time.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: November 12, 2002
    Assignee: IDEX Dental Sciences, Inc.
    Inventor: R. Eric Montgomery
  • Publication number: 20020131937
    Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.
    Type: Application
    Filed: January 17, 2002
    Publication date: September 19, 2002
    Applicant: R. Eric Montgomery and Idex Dental Sciences, Inc.
    Inventor: R. Eric Montgomery
  • Patent number: 6331292
    Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: December 18, 2001
    Assignees: Idex Dental Sciences, Inc.
    Inventor: R. Eric Montgomery
  • Patent number: 6322773
    Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: November 27, 2001
    Assignees: Idex Dental Sciences, Inc.
    Inventor: R. Eric Montgomery
  • Patent number: 6312670
    Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: November 6, 2001
    Assignees: R. Eric Montgomery, Idex Dental Sciences, Inc.
    Inventor: Robert Eric Montgomery
  • Patent number: 5944528
    Abstract: A composition having an effective dosage of chlorine dioxide for causing a visible change in the whiteness of a tooth surface is disclosed. The composition includes a first formulation having a chlorine dioxide precursor and a second formulation having an acidulant capable of generating chlorine dioxide upon contact with the precursor. Upon admixture of the first and second formulations to produce chlorine dioxide, the composition has a pH in the range of from about 3.0 to about 4.5. To whiten teeth, the first and second formulations may be mixed with one another prior to application of the resulting mixture to the teeth. Alternatively, one of the first and second formulations may initially be applied to the teeth prior to the application of the remaining formulation. The inventive composition is formulated to cause a visible change in the whiteness of a tooth surface in a relatively short period of time.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: August 31, 1999
    Assignee: IDEX Dental Sciences, Inc.
    Inventor: R. Eric Montgomery
  • Patent number: 5922307
    Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: July 13, 1999
    Assignees: R. Eric Montgomery, Idex Dental Sciences, Inc.
    Inventor: Robert Eric Montgomery