Granted Patent
Utility
US 5,662,928 · App. 08/426,166
Method for the prevention or removal of crystalline scopolamine in a non-aqueous matrix of a transdermal system
Inventor:
Richard Braun
Patented Case
View Patent ↗
Granted: Sep 2, 1997
Filed: Apr 21, 1995
Inventor
Richard Braun
Assignee (at issue)
Ciba-Geigy
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.