Patents by Inventor Jack Robert

Jack Robert 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).

  • SURFACE CHARGE MEASUREMENT
    Publication number: 20150022212
    Abstract: The invention relates to methods and apparatus for determining properties of a surface.
    Type: Application
    Filed: June 13, 2012
    Publication date: January 22, 2015
    Inventors: Corbett Jason, Fraser McNeil-Watson, Jack Robert
  • Lead acid battery with improved performance
    Patent number: 6458489
    Abstract: In a lead-acid battery with stress applied perpendicular to the plane of the electrodes, at least one of the elements chosen from among the positive electrode, the negative electrode and the electrolyte has been modified so that the quantity of sulfuric acid in the positive electrode and/or negative electrode represents at least 0.20 mole of H2SO4 per mole of active material in the charged state.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: October 1, 2002
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Jean Alzieu, Jack Robert
  • Lead-acid battery cells and manufacturing process thereof
    Patent number: 4476203
    Abstract: A lead-acid battery cell wherein each cell includes a compressed assembly of negative plates (2,3), separators (5) and positive plates (1).The positive plates (1) are sandwiched between two microporous separator elements (4) having dimensions greater than that of the plates and the plate edges are coated with an epoxy resin ribbon (20), which is provided by pouring resin into the channel between the projecting portions of the separators.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: October 9, 1984
    Assignee: Agence Nationale de Valorisation de la Recherche ANVAR
    Inventors: Jack Robert, Jean Alzieu