Patents by Inventor Robert L. Lanning

Robert L. Lanning 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).

  • Removal of sulfur dioxide from stack gases with phosphate slimes
    Patent number: 3936525
    Abstract: It has been found that slimes from phosphate ore washer plants may be used to absorb sulfur dioxide from waste gases such as tail gases from sulfuric acid plants or waste gases generated from the combustion of fossil fuels. The sulfur dioxide is retained in the slimes as a bisulfite, subsequently oxidized to bisulfate, and eventually precipitated.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: February 3, 1976
    Assignee: United States Steel Corporation
    Inventor: Robert L. Lanning