Patents by Inventor Frank Boulanger

Frank Boulanger 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).

  • Electrochromic glazing
    Patent number: 5352504
    Abstract: The invention relates to an electrochromic glazing successively comprising a glass sheet, a first electrode constituted by a transparent electroconductive layer, whose square resistance is below 5 Ohms, a layer of a cathodic electrochromic material, an electrolyte, a layer of an anodic electrochromic material and a second transparent electroconductive electrode, barrier layers being inserted between the said electrodes and the said electrochromic material layers, the square resistance of the assembly formed by an electrode and its barrier layer being below 5 Ohms.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: October 4, 1994
    Assignee: Saint-Gobain Vitrage International
    Inventors: Frank Boulanger, Francois Lerbet, Corinne Papret, Franck Perrodo, Gilles Thomas