Granted Patent
Utility
US 5,672,602 · App. 08/640,121
Substituted piperazine derivatives
Inventors:
Timothy Paul Burkholder, Tieu-Binh Le, Elizabeth M. Kudlacz
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Apr 30, 1996
Inventors
Timothy Paul Burkholder
Tieu-Binh Le
Elizabeth M. Kudlacz
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.