Granted Patent
Utility
US 6,225,481 · App. 09/137,767
Robustaflavone, intermediates and analogues and method for preparation thereof
Inventors:
David E. Zembower, Heping Zhang, Michael T. Flavin, Yuh-Meei Lin
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Aug 21, 1998
Inventors
David E. Zembower
Heping Zhang
Michael T. Flavin
Yuh-Meei Lin
Assignee (at issue)
ADVANCED LIFE SCIENCES, 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.