Granted Patent
Utility
US 6,475,134 · App. 09/231,851
Dual coil floating mass transducers
Inventors:
Geoffrey R. Ball, August C. Pombo, Christopher A. Julian, Eric M. Jaeger, Timothy G. Dietz, Bob H. Katz
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Jan 14, 1999
Inventors
Geoffrey R. Ball
August C. Pombo
Christopher A. Julian
Eric M. Jaeger
Timothy G. Dietz
Bob H. Katz
Assignee (at issue)
Symphonix Devices, 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.