Granted Patent
Utility
US 4,822,896 · App. 07/147,421
Method of synthesizing forskolin from 9-deoxyforskolin
Inventor:
Nicholas J. Hrib
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Jan 25, 1988
Inventor
Nicholas J. Hrib
Assignee (at issue)
Hoechst Roussel Pharmaceuticals
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.