Patents by Inventor Pacropis, Donald R.

Pacropis, Donald R. 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 bonding of acrylic resins, especially in dentistry
    Patent number: 4964911
    Abstract: A bonding adhesive for dentistry and a method for preparing the surface of dentin, enamel, or other natural or industrial substrates containing or capable of binding metallic ions, for adhesion of composite materials or resins. First, an aqueous solution of phosphoric acid or a mixture of phosphoric and nitric acids along with aluminum oxalate, or phosphoric acid alone, is applied to the surface.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: October 23, 1990
    Assignee: Den-Mat Corporation
    Inventors: Robert L. Ibsen, Pacropis, Donald R., William R. Glace