Patents by Inventor Subnash Dhar

Subnash Dhar 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).

  • Hydrogen containment cover assembly for sealing the cell can of a rechargeable electrochemical hydrogen storage cell
    Patent number: 5171647
    Abstract: A resealable, ventable hydrogen impermeable cover assembly for sealing a rechargeable, metal hydride hydrogen storage alloy electrochemical cell. The cover assembly includes, inter alia, a multilayered vent septum comprising at least one layer of a substantially hydrogen impermeable, highly compressible material and at least one layer of a high durometer hardness material exhibiting low pressure hysteresis.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: December 15, 1992
    Assignee: Ovonic Battery Company, Inc.
    Inventors: Kevin Dean, Arthur Holland, Herbert C. Ovshinsky, Michael Fetcenko, Srinivasan Venkatesan, Subnash Dhar