Granted Patent
Utility
US 6,528,086 · App. 09/407,720
Methods and apparatus for drug delivery involving phase changing formulations
Inventor:
Jie Zhang
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Sep 28, 1999
Inventor
Jie Zhang
Assignee (at issue)
ZARS, 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.