Granted Patent
Utility
US 6,542,766 · App. 09/909,188
Medical devices adapted for magnetic navigation with magnetic fields and gradients
Inventors:
Andrew F. Hall, Roger Hastings, Rogers C. Ritter
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Jul 19, 2001
Inventors
Andrew F. Hall
Roger Hastings
Rogers C. Ritter
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.