Patents by Inventor Joel T. Holl

Joel T. Holl 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).

  • Modular battery plant system assembly comprising multiple unit cell modules
    Patent number: 4957829
    Abstract: A battery plant system is comprised of an array of unit battery cells designed to interlock with each other. The interlocked unit cells are electrically connected to create battery cell assembly modules of the desired voltages. The interlocked unit battery cells are mounted on a multiple unit battery cell support member to form a battery cell assembly module. A stratum of battery cell assembly modules are installed on an assembly support tray. Pluralities of assembly support trays are stacked vertically and the battery cell assembly modules are interconnected into an interlocked spatial array to form the battery plant with ready accessibility provided to each battery cell assembly module for monitoring, maintenance and replacement.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: September 18, 1990
    Assignee: AT&T Bell Laboratories
    Inventor: Joel T. Holl
  • Portable telephone handset
    Patent number: D379810
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: June 10, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Joseph J. Giordano, Jr., James R. Graham, Joel T. Holl, William V. Jackwicz, Pratod V. Kasbekar, Harish S. Mangrulkar, Michael L. Moroze, Michael J. Nuttall, Joseph J. Rizzo, Christopher A. Robinette, John H. Schaffeld, Susan L. Tuttle, William E. Venth, Karl E. Werner, Romano M. Zambon