Patents by Inventor Robert Jacques Adrien

Robert Jacques Adrien 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 treating spent potlining containing inorganic matter
    Patent number: 5939035
    Abstract: The present invention relates to a process for reducing and/or removing inorganic matter from a material containing inorganic matter which comprises the steps of:(i) (a) treating the material with a source of hydrogen fluoride so as to form a first residue and a first solution containing inorganic matter;(b) separating the first residue from the first solution containing the inorganic matter;(c) treating the first residue with an acid so as to form a second residue and a second solution containing further inorganic matter; and(d) separating the second residue from the second solution containing the further inorganic matter; or(ii) (a) treating the material with an acid so as to form a first residue and a first solution containing inorganic matter;(b) separating the first residue from the first solution containing the inorganic matter;(c) treating the first residue with a source of hydrogen fluoride so as to form a second residue and a second solution containing further inorganic matter; and(d) separating the
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: August 17, 1999
    Assignee: The University of Melbourne
    Inventors: John Besida, Teresa Kit-Hing Pong, Robert Jacques Adrien, Geoffrey Harold Covey, Thomas Aloysius O'Donnell, David George Wood