Patents by Inventor Laszlo Hajdu

Laszlo Hajdu 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).

  • Silver zinc electric storage cells
    Patent number: 3945851
    Abstract: In order to increase the cyclability life of rechargeable silver-zinc electric storage cells, the semi-permeable membrane separator between the silver and zinc electrodes comprises a laminate of plies of semi-permeable oriented cellophane foil bonded together with the electrolyte with some of the plies arranged cross-wise, as regards their direction of orientation, relative to another ply of the membrane. In a preferred embodiment a further single layer of cellophane is disposed between the silver electrode the absorbent paper layer which is normally positioned between the silver electrode and the membrane.
    Type: Grant
    Filed: June 13, 1974
    Date of Patent: March 23, 1976
    Assignees: Medicharge Limited, Medicor Muvek
    Inventors: Harold Trevor Mote, Laszlo Hajdu, Bela Ronay