Patents by Inventor Frank L. Califano, deceased

Frank L. Califano, deceased 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).

  • Method for reducing water loss through soil by seepage
    Patent number: 4041712
    Abstract: A composition and method for reducing the loss of liquids by seepage through permeable ground surfaces is shown. The composition comprises an aqueous emulsion of asphalt including a cationic emulsifier, a nonionic surface active agent and elastomer solids. The compositions are particularly adapted for application to agricultural soils. After application to the ground surface, the surface is flooded with water to force the aqueous emulsion downward into the subsurface. A semi-permeable fluid barrier is created several inches below the surface. The composition and method are useful to create subsurface liquid barriers which permit the surface soil to be used for agricultural purposes.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: August 16, 1977
    Assignee: The Flintkote Company
    Inventors: George Stepien, Jr., Frank L. Califano, deceased, William DeLorenzo, Jr., co-executor, G. Bruce Gillard, co-executor, Thomas E. Russell, deceased, by Florence P. Russell, executrix