Patents by Inventor Barnes R. Bierck

Barnes R. Bierck 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).

  • Low permeability waste containment construction and composition containing granular activated carbon and method of making
    Patent number: 5591118
    Abstract: A low permeability waste containment structure includes a clay-containing component such as bentonite in combination with an effective amount of granular activated carbon to retard the migration of organic and inorganic contaminants through the waste material containment construction. The granular activated carbon can be added in amounts up to 20% or more without degrading the physical characteristics of the waste material containment structure.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: January 7, 1997
    Inventor: Barnes R. Bierck