Patents by Inventor Jean P. Communal

Jean P. Communal 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).

  • Water clarification/purification
    Patent number: 5171453
    Abstract: Aqueous media, e.g., surface or waste waters, or industrial effluents, are clarified/purified, notably to markedly reduce the residual aluminum and organic solids contents thereof, by treating same, advantageously sequentially, with an effective impurity coagulating amount of at least one aluminum polymer and at least one ferric salt.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: December 15, 1992
    Assignee: Rhone-Poulenc Chimie
    Inventor: Jean P. Communal