Granted Patent
Utility
US 5,601,839 · App. 08/429,757
Triacetin as a penetration enhancer for transdermal delivery of a basic drug
Inventors:
Danyi Quan, Ninad Deshpanday, Srinivasan Venkateshwaran, Charles D. Ebert
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: Apr 26, 1995
Inventors
Danyi Quan
Ninad Deshpanday
Srinivasan Venkateshwaran
Charles D. Ebert
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.