Granted Patent
Utility
US 6,454,950 · App. 09/869,657
Separation method utilizing liquid-liquid partition
Inventors:
Folke Tjerneld, Josefine Persson, Hans Johansson
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Oct 3, 2001
Inventors
Folke Tjerneld
Josefine Persson
Hans Johansson
Assignee (at issue)
Amersham Pharmacia Biotech, 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.