Granted Patent
Utility
US 5,842,967 · App. 08/693,454
Contactless transducer stimulation and sensing of ossicular chain
Inventor:
Kai Kroll
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Aug 7, 1996
Inventor
Kai Kroll
Assignee (at issue)
St. Croix 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.