Patents by Inventor Robert Springfield

Robert Springfield 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).

  • Adhesive compositions and methods for coating objects
    Patent number: 11883842
    Abstract: An adhesive composition comprising a core shell vinyl ester and a urethane acrylate, which is suitable to be applied to a rough or uneven surface of a substrate to render a smooth surface. The present adhesive composition is particularly suitable to coat large objects made through additive manufacturing to form molds or prototypes.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: January 30, 2024
    Assignees: Polynt Composites USA, Inc., Tru-Design, LLC
    Inventors: Richard Earl Spears, Robert Springfield, Murray Akerman, Alain Laframboise, Michael Allen Mathews, Richard Joseph Pauer, Steven L. Voeks
  • ADHESIVE COMPOSITIONS AND METHODS FOR COATING OBJECTS
    Publication number: 20180298246
    Abstract: An adhesive composition comprising a core shell vinyl ester and a urethane acrylate, which is suitable to be applied to a rough or uneven surface of a substrate to render a smooth surface. The present adhesive composition is particularly suitable to coat large objects made through additive manufacturing to form molds or prototypes.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 18, 2018
    Inventors: Richard Earl Spears, Robert Springfield, Murray Akerman, Alain Laframboise, Michael Allen Mathews, Richard Joseph Pauer, Steven L. Voeks