Granted Patent
Utility
US 6,399,362 · App. 09/577,747
Electrospraying apparatus and method for introducing material into cells
Inventors:
David Y. H. Pui, Da-Ren Chen
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: May 23, 2000
Inventors
David Y. H. Pui
Da-Ren Chen
Assignee (at issue)
Regents of the University of Minnesota
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.