Patents by Inventor Henry D. A. Cormode

Henry D. A. Cormode 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 the flotation of insol from sylvinite ore
    Patent number: 4608154
    Abstract: Insolubles are removed from sylvinite ores by froth flotation using a small amount of a primary, secondary or primary-ether alkyl amine as collector in combination with a flocculant. In the case of a primary alkyl amine, the collector may be the same as the collector used in the subsequent froth flotation to recover sylvite from the ore.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: August 26, 1986
    Assignee: Cominco Ltd.
    Inventors: Simon Chan, Eli Slorstad, Henry D. A. Cormode, Richard R. Tamosiunis