Patents by Inventor George Langford

George Langford 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 management system
    Patent number: 5225762
    Abstract: A battery charger providing a fast charge while the output voltage of the battery does not exceed a reference voltage. The battery charger providing a self-discharge interval after the output voltage exceeds the predetermined reference voltage.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: July 6, 1993
    Inventor: George Langford