Patents by Inventor Lawrence H. Keon

Lawrence H. Keon 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).

  • Froth flotation with petroleum oxidate-amine compositions
    Patent number: 4238409
    Abstract: Disclosed are cationic flotation agents for separating silica from ores consisting of the monocarboxylic acid salts of polyalkylene polyamine amides wherein the amide is completely neutralized.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: December 9, 1980
    Assignee: Texaco Inc.
    Inventors: Orville W. Rigdon, Gordon R. Schierberg, Lawrence H. Keon