Granted Patent
Utility
US 6,730,334 · App. 10/054,662
Multi-arm block copolymers as drug delivery vehicles
Inventor:
Xuan Zhao
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Jan 22, 2002
Inventor
Xuan Zhao
Assignee (at issue)
Nektar Therapeutics AL, Corporation
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.