Granted Patent
Utility
US 6,749,640 · App. 10/168,361
Multiaxis joint, especially artificial knee joint
Inventors:
Bernd Lührs, Frank Theile, Michael Griesser, Hans Albert Richard, Gunter Kullmer
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Jul 23, 2002
Inventors
Bernd Lührs
Frank Theile
Michael Griesser
Hans Albert Richard
Gunter Kullmer
Assignee (at issue)
Heggemann GmbH
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.