Granted Patent
Utility
US 6,268,533 · App. 09/493,042
Formoterol process
Inventors:
Yun Gao, Robert Hett, Kevin Fang, Stephen A. Wald, Chris Hugh Senanayake
Patented Case
View Patent ↗
Granted: Jul 31, 2001
Filed: Jan 27, 2000
Inventors
Yun Gao
Robert Hett
Kevin Fang
Stephen A. Wald
Chris Hugh Senanayake
Assignee (at issue)
Sepracor, 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.