Granted Patent
Utility
US 5,900,425 · App. 08/934,308
Pharmaceutical preparations having controlled release of active compound and processes for their preparation
Inventors:
Venkata-Rangarao Kanikanti, Wolfgang Mück, Andreas Ohm, Peter Kurka, Gerd Toppel
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Sep 19, 1997
Inventors
Venkata-Rangarao Kanikanti
Wolfgang Mück
Andreas Ohm
Peter Kurka
Gerd Toppel
Assignee (at issue)
Bayer Aktiengesellschaft
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.