Granted Patent
Utility
US 6,053,249 · App. 09/072,657
Method and apparatus for injecting gas into a subterranean formation
Inventors:
Mark D. Stevenson, Jerry L. Brady
Patented Case
View Patent ↗
Granted: Apr 25, 2000
Filed: May 5, 1998
Inventors
Mark D. Stevenson
Jerry L. Brady
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.