Patents by Inventor Gianluigi Ratti

Gianluigi Ratti 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 removing mercury and mercury salts from liquid effluents
    Patent number: 4087359
    Abstract: Mercury and mercury salts are removed from liquid effluents (which may also comprise muds and inert products in suspension) by reacting the liquid effluents, at a pH of from 9 to 14, with thiourea or a hydroxylamine salt, and subsequently separating the resulting precipitate, together with muds and inert products, if any, by clari-flocculation.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: May 2, 1978
    Assignee: Montedison S.p.A.
    Inventors: Germano Patron, Domenico Napoli, Franco Nardone, Gianluigi Ratti, Giuseppe Tubiello