Granted Patent
Utility
US 5,340,476 · App. 08/078,802
High efficiency packed column supercritical fluid chromatography
Inventors:
Terry A. Berger, William H. Wilson
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Jun 17, 1993
Inventors
Terry A. Berger
William H. Wilson
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.