Granted Patent
Utility
US 6,710,167 · App. 09/379,796
Procedure for the chromatographic purification of insulins
Inventors:
Werner Sievers, Richard Bicker, Dieter Desch, Jorg Von Eysmondt, Reinhold Keller, Frank Richard
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Aug 24, 1999
Inventors
Werner Sievers
Richard Bicker
Dieter Desch
Jorg Von Eysmondt
Reinhold Keller
Frank Richard
Assignee (at issue)
Aventis Pharma Deutschland GmbH
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.