Patents by Inventor Rene A. Gerardin

Rene A. Gerardin 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).

  • Alkali or alkaline earth metal ferrates, their preparation and their industrial applications
    Patent number: 5284642
    Abstract: The ferrates in solid state have the formula:M (Fe, X)O.sub.4in which M designates two atoms of Na or K or one atom of Ca or Ba, and X is an atom whose cation has the electronic structure of a rare gas. These ferrates are isomorphs of ferrates of the formula M FeO.sub.4, in which M has the same definition as above. Used particularly for the treatment of water, by oxidation.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: February 8, 1994
    Assignees: Centre International de l'Eau de Nancy (NAN.C.I.E.), Omer Evrard
    Inventors: Omer J. Evrard, Rene A. Gerardin, Nathalie Schmitt, Jean-Luc Evrard