Granted Patent
Utility
US 5,552,159 · App. 08/125,133
Solid depot drug form
Inventors:
Winfried Mueller, Reinhard Spengler, Sven Grabowski, Axel Sanner
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Sep 23, 1993
Inventors
Winfried Mueller
Reinhard Spengler
Sven Grabowski
Axel Sanner
Assignee (at issue)
BASF SE
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.