Granted Patent
Utility
US 6,689,871 · App. 09/914,162
Process for production diphtheria toxin
Inventors:
Henry Wolfe, Fahar Merchant, Rosemina Merchant, Christopher Black, Harry Storflor, Geir Stokke, Halldis Hellebust
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Jan 25, 2002
Inventors
Henry Wolfe
Fahar Merchant
Rosemina Merchant
Christopher Black
Harry Storflor
Geir Stokke
Halldis Hellebust
Assignee (at issue)
Amersham Health AS
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.