Patents by Inventor Nizar Aouina

Nizar Aouina 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).

  • Method for proportioning nitrates and/or nitrites in a neutral medium
    Patent number: 9028670
    Abstract: The present invention relates to a method for proportioning nitrate and/or nitrite ions in a solution using a copper electrode, said method being characterized in that it is carried out in constant potential mode and moreover in that it includes the steps of: i. applying a first potential to the copper electrode so as to reduce the copper oxides present on the surface of the metal copper electrode; ii. applying a second potential to the copper electrode so as to oxidize the metal copper formed in Step i into cupric ions; iii. applying a third potential to the copper electrode so as to reduce the copper oxides possibly formed in Step ii. Steps i through iii being carried out in a support electrolyte; and iv.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: May 12, 2015
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Catherine Debiemme, Hubert Cachet, Thi Tuyet Maï{umlaut over ( )} Trong Long, Nizar Aouina
  • METHOD FOR PROPORTIONING NITRATES AND/OR NITRITES IN A NEUTRAL MEDIUM
    Publication number: 20120217172
    Abstract: The present invention relates to a method for proportioning nitrate and/or nitrite ions in a solution using a copper electrode, said method being characterized in that it is carried out in constant potential mode and moreover in that it includes the steps of: i. applying a first potential to the copper electrode so as to reduce the copper oxides present on the surface of the metal copper electrode; ii. applying a second potential to the copper electrode so as to oxidize the metal copper formed in Step i into cupric ions; iii. applying a third potential to the copper electrode so as to reduce the copper oxides possibly formed in Step ii. Steps i through iii being carried out in a support electrolyte; and iv.
    Type: Application
    Filed: November 17, 2010
    Publication date: August 30, 2012
    Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Catherine Debiemme, Hubert Cachet, Thi Tuyet Maï Trong Long, Nizar Aouina