Granted Patent
Utility
US 5,874,594 · App. 08/947,307
Triterpene derivatives with immunosuppressant activity
Inventors:
Robert K. Baker, Frank Kayser, Jianming Bao, Andrew Kotliar, William H. Parsons, Kathleen M. Rupprecht
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Oct 8, 1997
Inventors
Robert K. Baker
Frank Kayser
Jianming Bao
Andrew Kotliar
William H. Parsons
Kathleen M. Rupprecht
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.