Patents by Inventor Johann Pitsch

Johann Pitsch 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).

  • Mechanically reinforced high porosity partially fused glass fiber galvanic separator
    Patent number: 3940536
    Abstract: A separator for a galvanic element wherein partially fused glass fibers are coated by a coating consisting of grains of thermo-hardening synthetic material immersed in a natural or synthetic latex to mechanically reinforce the knots in the glass fiber network resulting from partial fusion of the glass fibers without blocking the pores of the partially fused fiber network.
    Type: Grant
    Filed: July 3, 1973
    Date of Patent: February 24, 1976
    Assignees: Compagnie Europeenne d'Accumulateurs, Societe Fulmen
    Inventors: Johann Pitsch, Pierre Lasserre