Granted Patent
Utility
US 5,362,858 · App. 08/018,412
Polyethylene glycol-hirudin conjugates, process for preparing them and their use for the treatment of thromboses
Inventor:
Rainer Bischoff
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: Feb 17, 1993
Inventor
Rainer Bischoff
Assignee (at issue)
TRANSGENE SA
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.