Granted Patent
Utility
US 6,283,204 · App. 09/393,382
Oil and gas production with downhole separation and reinjection of gas
Inventors:
Jerry L. Brady, Mark D. Stevenson, John M. Klein, James L. Cawvey
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Sep 10, 1999
Inventors
Jerry L. Brady
Mark D. Stevenson
John M. Klein
James L. Cawvey
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.