Granted Patent
Utility
US 6,241,890 · App. 09/332,710
Apparatus and method for supercritical fluid extraction
Inventors:
Dale L. Clay, Robert W. Allington, Philip Bernard Liescheski, III, Robin R. Winter, Daniel G. Jameson
Patented Case
View Patent ↗
Granted: Jun 5, 2001
Filed: Jun 14, 1999
Inventors
Dale L. Clay
Robert W. Allington
Philip Bernard Liescheski, III
Robin R. Winter
Daniel G. Jameson
Assignee (at issue)
Isco, Inc.
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.