Granted Patent
Utility
US 5,337,821 · App. 08/014,132
Method and apparatus for the determination of formation fluid flow rates and reservoir deliverability
Inventor:
Gregg Peterson
Patented Case
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Granted: Aug 16, 1994
Filed: Feb 5, 1993
Inventor
Gregg Peterson
Assignee (at issue)
Aqrit Industries Ltd.
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.