Granted Patent
Utility
US 5,637,568 · App. 08/210,097
Composition for the sustained and controlled release of medicamentous substances and a process for preparing the same
Inventors:
Piero Orsolini, Frederic Heimgartner
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: Mar 16, 1994
Inventors
Piero Orsolini
Frederic Heimgartner
Assignee (at issue)
Asta Medica 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.