Patents by Inventor Hartmut Heimer

Hartmut Heimer 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).

  • Implantable medical device with end-of-life battery detection circuit
    Patent number: 5713936
    Abstract: A battery-operated implantable medical device comprises a battery, a measuring device for determining the state of charge of the battery through measurement of the no-load voltage, and an electric load. The no-load voltage of the battery has an increased drop in a range in which a remaining residual energy suffices to keep the operation of the device going for a minimum period of time required to carry out a therapeutic process.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: February 3, 1998
    Assignee: Litronik Batterietechnologie GmbH & Co.
    Inventors: Roland Staub, Gerd Fehrmann, Rudiger Wolf, Thomas Fischer, Hartmut Heimer