Patents by Inventor Tom Steven Petersen

Tom Steven Petersen 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).

  • Cationic flotation of silica and apatite from oxidized iron ores at natural pH
    Patent number: 10786819
    Abstract: A process to beneficiate oxidized iron ore can include the steps of: (1) adding a polysaccharide to the oxidized iron ore; (2) adding at least one amine; and (3) adding at least one salt; wherein the pH of the process is below 10 and greater than 5.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: September 29, 2020
    Assignee: Regents of the University of Minnesota
    Inventors: Matthew Albert Mlinar, Tom Steven Petersen
  • CATIONIC FLOTATION OF SILICA AND APATITE FROM OXIDIZED IRON ORES AT NATURAL PH
    Publication number: 20190070616
    Abstract: A process to beneficiate oxidized iron ore can include the steps of: (1) adding a polysaccharide to the oxidized iron ore; (2) adding at least one amine; and (3) adding at least one salt; wherein the pH of the process is below 10 and greater than 5.
    Type: Application
    Filed: January 20, 2017
    Publication date: March 7, 2019
    Inventors: Matthew Albert Mlinar, Tom Steven Petersen