Granted Patent
Utility
US 4,405,616 · App. 06/380,161
Penetration enhancers for transdermal drug delivery of systemic agents
Inventor:
Vithal J. Rajadhyaksha
Patented Case
View Patent ↗
Granted: Sep 20, 1983
Filed: May 20, 1982
Inventor
Vithal J. Rajadhyaksha
Assignee (at issue)
Nelson Research & Development Company
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.