Patents by Inventor Stephen W. Bilan

Stephen W. Bilan 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).

  • Variable injection process and apparatus for energy recovery
    Patent number: 5460699
    Abstract: A process and apparatus for recovering energy values of waste tar sludge comprises dewatering the waste tar sludge, transporting the dewatered tar sludge in enclosed containers vented through activated carbon to remove volatile hydrocarbons before vapors are vented to the atmosphere, and injecting the dewatered tar sludge into the side wall of a coke oven charging hole along with a stream of coking coal introduced through the top of the charging hole.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: October 24, 1995
    Assignee: USX Corporation
    Inventors: Stephen W. Bilan, Anthony J. Nuzzo