Patents by Inventor Richard Allen Langan

Richard Allen Langan 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).

  • Metal oxide cells having low internal impedance
    Patent number: 4015055
    Abstract: A metal oxide alkaline cell, such as a silver oxide-zinc cell, having a negative electrode, an alkaline electrolyte, a positive electrode comprising for example divalent silver oxide housed in a positve terminal container, a separator disposed between the negative electrode and the positive electrode, and wherein a thin porous, electronically conductive layer, such as a gold layer, is disposed between the positive electrode and the separator and is extended to contact the positive terminal container.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: March 29, 1977
    Assignee: Union Carbide Corporation
    Inventors: Richard Allen Langan, Nicholas Joseph Smilanich, Akiya Kozawa