Patents by Inventor Richard E. Heitzmann

Richard E. Heitzmann 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).

  • Mineral binder and compositions employing the same
    Patent number: 4640715
    Abstract: A dry, mineral binder composition is disclosed having from 6 to 25 parts by weight metakaolin, 3 to 30 parts by weight dry potassium hydroxide, 0 to 18 parts by weight slag, 0 to 60 parts by weight of a material selected from the class consisting of fly ash, calcined shale, and calcined clay, and from 1 to 150 parts, by weight, of a finely divided silica, preferably an amorphous silica. The binder is particularly useful in combination with Portland cement for forming concrete compositions.
    Type: Grant
    Filed: March 6, 1985
    Date of Patent: February 3, 1987
    Assignee: Lone Star Industries, Inc.
    Inventors: Richard E. Heitzmann, Mark Fitzgerald, James L. Sawyer