Granted Patent
Utility
US 4,857,648 · App. 07/268,441
Isoquinoline derivatives
Inventors:
Emil A. Broger, Yvo Crameri, Bernd Heiser
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Nov 8, 1988
Inventors
Emil A. Broger
Yvo Crameri
Bernd Heiser
Assignee (at issue)
HOFFMANN-LA ROCHE INC.
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.