Granted Patent
Utility
US 4,980,359 · App. 07/507,702
Isoquinoline derivatives and their use
Inventors:
Klaus Hasspacher, Reto Naef
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Apr 10, 1990
Inventors
Klaus Hasspacher
Reto Naef
Assignee (at issue)
Sandoz AG
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.