Granted Patent
Utility
US 5,570,744 · App. 08/442,946
Separator systems for well production fluids
Inventors:
Jean S. Weingarten, Miroslav M. Kolpak, Scott A. Mattison, Ronald G. Oba, M. Jane Williamson
Patented Case
View Patent ↗
Granted: Nov 5, 1996
Filed: May 17, 1995
Inventors
Jean S. Weingarten
Miroslav M. Kolpak
Scott A. Mattison
Ronald G. Oba
M. Jane Williamson
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.