Granted Patent
Utility
US 6,544,216 · App. 09/446,770
Intracardiac blood pump
Inventors:
Rolf Sammler, Thorsten Siess, Christoph Nix, Max Eisen, Jens Hutzenlaub, Bart Meyns
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: May 30, 2000
Inventors
Rolf Sammler
Thorsten Siess
Christoph Nix
Max Eisen
Jens Hutzenlaub
Bart Meyns
Assignee (at issue)
Impella Cardiotechnik AG
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.