Patents by Inventor Annie Cathala

Annie Cathala 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).

  • Electrolyte and process for electrolytic production of fluorine
    Patent number: 4176018
    Abstract: An electrolyte and process for the low temperature industrial electrolytic production of fluorine gas utilizing a ternary electrolyte having a composition of:NH.sub.4 F=5 to 20 mol % of NH.sub.4 +KFHF=40 to 45%, by weight, of NH.sub.4 F+KF+HFwherein the working temperature of the electrolyte is maintained between about 50.degree. C. and about 75.degree. C.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: November 27, 1979
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Robert Faron, Annie Cathala
  • Electrolyzer for industrial production of fluorine
    Patent number: 4139447
    Abstract: A new electrolyzer for the industrial production of fluorine gas which uses bipolar and monopolar electrodes within a tank containing an electrolyte of an anhydrous mixture of mineral fluorides and hydrogen fluoride. A compact construction is achieved which requires only two current connections.
    Type: Grant
    Filed: March 12, 1976
    Date of Patent: February 13, 1979
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Robert Faron, Annie Cathala