Granted Patent
Utility
US 5,864,045 · App. 08/067,386
Heterocyclic substituted piperazinone derivatives
Inventors:
Timothy Paul Burkholder, Elizabeth M. Kudlacz, Tieu-Binh Le
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Apr 27, 1998
Inventors
Timothy Paul Burkholder
Elizabeth M. Kudlacz
Tieu-Binh Le
Assignee (at issue)
Hoechst Marion Roussel
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.