Granted Patent
Utility
US 6,383,222 · App. 09/673,067
Knee hinge prosthesis with wear-resistant device for guiding the patellar components
Inventor:
Dirk Badorf
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Nov 30, 2000
Inventor
Dirk Badorf
Assignee (at issue)
Ceramtec AG, Innovative Ceramic Engineering
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.