Granted Patent
Utility
US 5,794,697 · App. 08/757,857
Method for increasing oil production from an oil well producing a mixture of oil and gas
Inventors:
John R. Wolflick, James L. Cawvey, Jerry L. Brady, John Whitworth, David D. Hearn
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Nov 27, 1996
Inventors
John R. Wolflick
James L. Cawvey
Jerry L. Brady
John Whitworth
David D. Hearn
Assignee (at issue)
Atlantic Richfield 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.