Patents by Inventor Helmar Wagner

Helmar Wagner 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).

  • Tetraacrylic and tetramethacrylic esters and dental materials containing same
    Patent number: 4420306
    Abstract: Tetraacrylic acid and tetramethacrylic acid esters and dental restorative and filling materials containing the esters.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: December 13, 1983
    Assignee: Blendax-Werke R. Schneider GmbH & Co.
    Inventors: Jan A. Orlowski, Helmar Wagner, David V. Butler