Patents by Inventor Morris Eugene Lewellyn

Morris Eugene Lewellyn 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).

  • Composition for mineral concentrate dewatering during filtration
    Patent number: 4097390
    Abstract: A dewatering aid for mineral concentrates comprising an ethoxylated secondary alcohol, a dialkylsulfosuccinic acid or salt thereof, and a mono(ethoxylated alcohol) carboxylate ester of a sulfosuccinic acid or salt thereof provides improved dewatering with high aid retention on the dewatered concentrate.
    Type: Grant
    Filed: July 20, 1977
    Date of Patent: June 27, 1978
    Assignee: American Cyanamid Company
    Inventors: Samuel Shang-Ning Wang, Morris Eugene Lewellyn