Granted Patent
Utility
US 5,374,645 · App. 08/017,364
Transdermal administation of ionic pharmaceutically active agents via aqueous isopropanol
Inventors:
Tamie Kurihara-Bergstrom, Puchun Liu
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Feb 11, 1993
Inventors
Tamie Kurihara-Bergstrom
Puchun Liu
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.