Granted Patent
Utility
US 6,562,368 · App. 09/737,828
Transdermal administration of oxybutynin using hydroxide-releasing agents as permeation enhancers
Inventors:
Tsung-Min Hsu, Eric C. Luo
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Dec 14, 2000
Inventors
Tsung-Min Hsu
Eric C. Luo
Assignee (at issue)
DERMATRENDS, 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.