Patents by Inventor Joseph F. Sheridan

Joseph F. Sheridan 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).

  • Battery charging system
    Patent number: 5150031
    Abstract: A battery charging unit communicates with an operational device while contemporaneously charging a battery to power the device. The device provides information to the charging unit indicating its present operational status, which enables the charging unit to determine the magnitude of the proper charging current under such operating conditions. In this way, battery life is maximized while battery charging time is minimized.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: September 22, 1992
    Assignee: Motorola, Inc.
    Inventors: Gordon W. James, Joseph F. Sheridan, Wayne Moy