Granted Patent
Utility
US 6,797,238 · App. 09/850,943
Apparatus and process for vaporizing a heavy hydrocarbon feedstock with steam
Inventors:
Krishnamoorthy Chandrasekharan, Antonius Gijsbertus Johannes Kloth, Jeroen Van Westrenen
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: May 8, 2001
Inventors
Krishnamoorthy Chandrasekharan
Antonius Gijsbertus Johannes Kloth
Jeroen Van Westrenen
Assignee (at issue)
SHELL OIL COMPANY
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.