Patents by Inventor Andrew J. Callegari

Andrew J. Callegari 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).

  • Passive acoustic power spectra to monitor and control processing
    Patent number: 4973386
    Abstract: A process for the detection and measurement of wall coke at a specific location in a fluid bed coker through the measurement of the vibrations of the external shell of the coker at the location.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: November 27, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: Andrew J. Callegari, Eugene R. Elzinga, Jr., George D. Cody, Roger W. Cohen
  • Passive acoustic power spectra to monitor and control processing
    Patent number: 4877488
    Abstract: A process is disclosed for the detection and measurement of wall coke at a specific location in a fluid bed coker through the measurement of the vibrations of the external shell of the coker at that location.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: October 31, 1989
    Assignee: Exxon Research and Engineering Company
    Inventors: George D. Cody, Eugene R. Elzinga, Jr., Andrew J. Callegari, Roger W. Cohen