Granted Patent
Utility
US 6,475,931 · App. 09/861,839
Method for producing devices having piezoelectric films
Inventors:
John Eric Bower, John Pastalan, George Rittenhouse
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: May 21, 2001
Inventors
John Eric Bower
John Pastalan
George Rittenhouse
Assignee (at issue)
Agere Systems 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.