Granted Patent
Utility
US 6,261,224 · App. 09/304,327
Piezoelectric film transducer for cochlear prosthetic
Inventors:
Theodore P. Adams, Bruce A. Brillhart, Donald J. Bushek, Kai Kroll
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: May 3, 1999
Inventors
Theodore P. Adams
Bruce A. Brillhart
Donald J. Bushek
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.