Patents by Inventor J. Orsdale

J. Orsdale 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).

  • Ester quaternary cationic flotation collectors
    Publication number: 20050047983
    Abstract: A new class of useful reagents for ore beneficiation are obtained by the quarternization of the reaction products of tertiary alkanolamine derivatives and fatty acids or their ester derivatives. The reagents are particularly useful for the flotation separation of ore values from siliceous materials.
    Type: Application
    Filed: August 29, 2003
    Publication date: March 3, 2005
    Inventors: Tim Cameron, J. Orsdale, D. Parker