Granted Patent
Utility
US 4,609,675 · App. 06/661,538
Stable, high dose, high bulk density ibuprofen granulations for tablet and capsule manufacturing
Inventor:
Robert M. Franz
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Oct 16, 1984
Inventor
Robert M. Franz
Assignee (at issue)
The Upjohn Co.
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.