Patents by Inventor Sandi LaVonne Engelhorn

Sandi LaVonne Engelhorn 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).

  • Automated emergency announcement system
    Patent number: 6317042
    Abstract: In response to an emergency event, an emergency announcement system (100) causes display of an escape route based upon a room location. A sensor (104) detects an emergency event. The sensor data (106) from the sensor relating to the emergency event is transmitted to an emergency server (122), the emergency server (122) determines the escape route and the escape route is sent to a display device (118) for use by the building occupants to escape the emergency.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: November 13, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Sandi LaVonne Engelhorn, Chinmei Chen Lee, Zhibi Wang