Patents by Inventor Gordon Sutherland

Gordon Sutherland 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).

  • Preparation of activated carbonaceous material from sewage sludge and sulfuric acid
    Patent number: 3998756
    Abstract: This invention relates to a process of preparing activated carbonaceous material from sewage sludge by treating the sludge with sulfuric acid and then subjecting the mixture to elevated temperatures of about 150.degree. to about 350.degree. C. The activated material can be used as an adsorbent in any of the conventional processes employing powdered activated carbon, for example, waste water treatment.
    Type: Grant
    Filed: June 17, 1974
    Date of Patent: December 21, 1976
    Assignee: Hercules Incorporated
    Inventor: Gordon Sutherland