Granted Patent
Utility
US 6,237,545 · App. 09/544,741
Refinery process furnace
Inventors:
Daniel Joseph Barnett, Gregory Bryan Cargle
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Apr 7, 2000
Inventors
Daniel Joseph Barnett
Gregory Bryan Cargle
Assignee (at issue)
Kellogg Brown & Root LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.