Granted Patent
Utility
US 6,548,084 · App. 09/391,796
Controlled release compositions
Inventors:
Graham Leonard, David Elder
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Sep 9, 1999
Inventors
Graham Leonard
David Elder
Assignee (at issue)
SmithKline Beeacham P.L.C.
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.