Granted Patent
Utility
US 5,552,521 · App. 08/386,618
Process for preparing certain aza cyclohexapeptides
Inventors:
Kevin M. Belyk, Dean R. Bender, Regina M. Black, David L. Hughes, William Leonard
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Feb 10, 1995
Inventors
Kevin M. Belyk
Dean R. Bender
Regina M. Black
David L. Hughes
William Leonard
Assignee (at issue)
MERCK & CO., INC.
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.