Patents by Inventor Subash C. Nijhawan

Subash C. Nijhawan 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).

  • Patent number: 4448860
    Abstract: Non-aqueous alkaline cells, particularly those with Li anodes, are effectively protected against oxidation or carbonization due to inwardly diffusing moisture by providing them with a getter material of high specific adsorbtivity for gases. For this, there are particularly useful molecular sieves of the Zeolite type, of highly active aluminum oxide, or of silica gel. For retaining the getter, there can be used as receptor media the porous separator or the solid cathode material, and if appropriate also the solid electrolyte. In addition, the getter material can form an extrudable or injectable composite polymer with the plastic of a conventional housing seal, which functions as a water vapor barrier right in the sealing region.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: May 15, 1984
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Ulrich von Alpen, Subash C. Nijhawan