Patents by Inventor Brian E. Bizjak

Brian E. Bizjak 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).

  • Method and apparatus for boosting an audible signal in a notification system
    Patent number: 8457330
    Abstract: The present invention is an apparatus and a concomitant method for boosting the audio signal generated by at least one notification appliance in a supervised emergency voice evacuation system.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: June 4, 2013
    Assignee: Wheelock, Inc.
    Inventors: John W. Curran, Edward V. Applegate, Joseph Kosich, Richard H. Fetterly, Anthony W. Russo, II, Brian E. Bizjak
  • METHOD AND APPARATUS FOR BOOSTING AN AUDIBLE SIGNAL IN A NOTIFICATION SYSTEM
    Publication number: 20090153339
    Abstract: The present invention is an apparatus and a concomitant method for boosting the audio signal generated by at least one notification appliance in a supervised emergency voice evacuation system.
    Type: Application
    Filed: September 16, 2008
    Publication date: June 18, 2009
    Inventors: John W. Curran, Edward V. Applegate, Joseph Kosich, Richard H. Fetterly, Anthony W. Russo, II, Brian E. Bizjak
  • Method and apparatus for boosting an audible signal in a notification system
    Patent number: 7428311
    Abstract: The present invention is an apparatus and a concomitant method for boosting the audio signal generated by at least one notification appliance in a supervised emergency voice evacuation system.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: September 23, 2008
    Assignee: Wheelock, Inc.
    Inventors: John W. Curran, Edward V. Applegate, Joseph Kosich, Richard H. Fetterly, Anthony W. Russo, II, Brian E. Bizjak