Patents by Inventor Henry Croskell

Henry Croskell 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).

  • Process for recovering gases from landfills
    Patent number: 4518399
    Abstract: A process for treating a landfill for recovering methane therefrom wherein a mixture of methane and carbon dioxide is withdrawn from a central portion of the landfill and the carbon dioxide and methane are separated. The methane is fed to a pipeline and a portion of the carbon dioxide is fed to wells spaced around the periphery of the landfill at a pressure of 7 to 170 kPa to prevent air from entering the landfill around the periphery thereof.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: May 21, 1985
    Assignee: Monsanto Company
    Inventors: Henry Croskell, Tommy E. Graham