Granted Patent
Utility
US 6,403,604 · App. 09/797,765
Nitrogen-based camptothecin derivatives
Inventors:
Li-Xi Yang, Xiandao Pan, Huijuan Wang
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Mar 1, 2001
Inventors
Li-Xi Yang
Xiandao Pan
Huijuan Wang
Assignee (at issue)
CALIFORNIA PACIFIC MEDICAL CENTER
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.