Granted Patent
Utility
US 4,501,675 · App. 06/514,717
Enhanced oil recovery
Inventors:
Thomas P. Malloy, Raymond J. Swedo
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Jul 18, 1983
Inventors
Thomas P. Malloy
Raymond J. Swedo
Assignee (at issue)
UOP LLC
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.