Patents by Inventor Luis R. Guerra

Luis R. Guerra 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).

  • Phosphonitrilic fluoroelastomer lined denture
    Patent number: 4251215
    Abstract: A prosthetic denture which is lined on its tissue bearing surfaces with a phosphonitrilic fluoroelastomer layer to provide a resilient, durable cushion for the prosthetic denture; and a method for making same is disclosed.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: February 17, 1981
    Assignee: Gulf South Research Institute
    Inventors: Paul May, Luis R. Guerra