Granted Patent
Utility
US 6,380,355 · App. 09/386,303
Process for obtaining insulin precursors having correctly bonded cystine bridges
Inventors:
Franz-Josef Rubröder, Reinhold Keller
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Aug 31, 1999
Inventors
Franz-Josef Rubröder
Reinhold Keller
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.