Patents by Inventor Ronald A. N. McLean

Ronald A. N. McLean 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).

  • Treatment of mercury contaminated aqueous media
    Patent number: 4147626
    Abstract: A technique for removing substantially all the elemental mercury from a mercury containing aqueous media by adjusting the pH of the liquid to the range of 7-13, adding a polysulfide in an amount sufficient to combine with the elemental mercury to form a mercury sulfide which is precipitated and preventing the mercury from being resolublized.
    Type: Grant
    Filed: January 7, 1977
    Date of Patent: April 3, 1979
    Assignee: Domtar Inc.
    Inventors: David M. Findlay, Ronald A. N. McLean