Granted Patent
Utility
US 5,686,094 · App. 07/678,814
Controlled release formulations for the treatment of xerostomia
Inventor:
Ramesh N. Acharya
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Apr 1, 1991
Inventor
Ramesh N. Acharya
Assignee (at issue)
TheraTech, 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.