Granted Patent
Utility
US 6,745,837 · App. 09/841,431
In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate
Inventors:
Scott Lee Wellington, Harold J. Vinegar, Eric Pierre de Rouffignac, Ilya Emil Berchenko, George Leo Stegemeier, Etuan Zhang, Gordon Thomas Shahin, Jr., Thomas David Fowler, Robert Charles Ryan
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Apr 24, 2001
Inventors
Scott Lee Wellington
Harold J. Vinegar
Eric Pierre de Rouffignac
Ilya Emil Berchenko
George Leo Stegemeier
Etuan Zhang
Gordon Thomas Shahin, Jr.
Thomas David Fowler
Robert Charles Ryan
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.