Granted Patent
Utility
US 6,235,023 · App. 09/148,571
Cell necrosis apparatus
Inventors:
Kee S. Lee, Daniel J. Balbierz
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Sep 4, 1998
Inventors
Kee S. Lee
Daniel J. Balbierz
Assignee (at issue)
Rita Medical Systems, 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.