Patents by Inventor Bert M. Allard

Bert M. Allard 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).

  • Backfill composition for secondary barriers in nuclear waste repositories
    Patent number: 4321158
    Abstract: A backfill composition for sorbing and retaining hazardous elements of nuclear wastes comprises 50-70% by weight of quartz, 10-30% by weight of montmorillonite, 1-10% by weight of phosphate mineral, 1-10% by weight of ferrous mineral, 1-10% by weight of sulfate mineral and 1-10% by weight of attapulgite.
    Type: Grant
    Filed: May 30, 1980
    Date of Patent: March 23, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Gary W. Beall, Bert M. Allard