Granted Patent
Utility
US 5,087,613 · App. 07/320,530
Hirudin variants
Inventors:
Michael J. Courtney, Eric Degryse, Gerard Loison
Patented Case
View Patent ↗
Granted: Feb 11, 1992
Filed: Mar 8, 1989
Inventors
Michael J. Courtney
Eric Degryse
Gerard Loison
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.