Granted Patent
Utility
US 4,834,178 · App. 07/205,914
Process for injection of oxidant and liquid into a well
Inventors:
Peter Knecht, Thomas R. Schulte, Raymond Francis Drnevich
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Jun 13, 1988
Inventors
Peter Knecht
Thomas R. Schulte
Raymond Francis Drnevich
Assignee (at issue)
Union Carbide Corporation
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.