Patents by Inventor Raymond L. Bertolotti

Raymond L. Bertolotti 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).

  • RING FOR USE IN PREPARING TEETH FOR RESTORATION
    Publication number: 20110311945
    Abstract: The invention is an open-ended dental ring with varying height used in the preparation of a tooth for a restorative procedure. The ring is used in conjunction with a shield to ensure the shield between a tooth to be restored and an adjacent tooth. The result is a close contact being formed between the two teeth after restoration and improved flexibility recall after repeated use.
    Type: Application
    Filed: February 15, 2008
    Publication date: December 22, 2011
    Inventors: Raymond L. Bertolotti, Mark S. Fernwood
  • Dental composition
    Patent number: 5797749
    Abstract: An aqueous-based dental composition useful for desensitizing an exposed tooth surface in preparation for performing restorative work on the tooth surface. The composition comprises benzethonium chloride, 2-hydroxyethyl methacrylate, water and optionally a small amount of a fluoride salt. The composition is used in the method of repairing a damaged tooth.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: August 25, 1998
    Assignee: Danville Materials
    Inventors: Raymond L. Bertolotti, Thomas S. Blake