Granted Patent
Utility
US 5,652,244 · App. 08/474,761
Method for treating cancer with water-insoluble S-camptothecin of the closed lactone ring form and derivatives thereof
Inventors:
Beppino C. Giovanella, Hellmuth R. Hinz, Anthony J. Kozielski, John S. Stehlin
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Jun 7, 1995
Inventors
Beppino C. Giovanella
Hellmuth R. Hinz
Anthony J. Kozielski
John S. Stehlin
Assignee (at issue)
The Stehlin Foundation for Cancer Research
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.