Granted Patent
Utility
US 5,661,001 · App. 08/406,948
High molecular weight desulphatohirudin
Inventors:
Hugo Grossenbacher, Jui Y. Chang, Walter Marki
Patented Case
View Patent ↗
Granted: Aug 26, 1997
Filed: Mar 29, 1995
Inventors
Hugo Grossenbacher
Jui Y. Chang
Walter Marki
Assignee (at issue)
Ciba-Geigy
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.