Granted Patent
Utility
US 6,428,563 · App. 09/489,142
Heat exchange catheter with improved insulated region
Inventor:
Wade A. Keller
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Jan 21, 2000
Inventor
Wade A. Keller
Assignee (at issue)
Radiant Medical, 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.