Patents by Inventor Robert J. Dostal

Robert J. Dostal 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).

  • Handheld cordless deactivator for electronic article surveillance tags
    Publication number: 20040145477
    Abstract: A cordless handheld EAS tag deactivator is provided. The deactivator is housed in a portable handheld housing. An antenna is attached to the housing. The antenna is adapted for transmission of an electromagnetic field, which deactivates EAS tags within the field. An electronic circuit is connected to the antenna to generate the electromagnetic field. A battery contained within the housing is connected to the electronic circuit to power the generation and transmission of the electromagnetic field.
    Type: Application
    Filed: August 13, 2003
    Publication date: July 29, 2004
    Inventors: Ronald B. Easter, Robert J. Dostal, Steven V. Leone
  • Handheld cordless deactivator for electronic article surveillance tags
    Patent number: 6700489
    Abstract: A cordless handheld EAS tag deactivator is provided. The deactivator is housed in a portable handheld housing. An antenna is attached to the housing. The antenna is adapted for transmission of an electromagnetic field, which deactivates EAS tags within the field. An electronic circuit is connected to the antenna to generate the electromagnetic field. A battery contained within the housing is connected to the electronic circuit to power the generation and transmission of the electromagnetic field.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: March 2, 2004
    Assignee: Sensormatic Electronics Corporation
    Inventors: Ronald B. Easter, Robert J. Dostal, Steven V. Leone