Granted Patent
Utility
US 6,548,943 · App. 09/833,804
Method of producing thin-film bulk acoustic wave devices
Inventors:
Jyrki Kaitila, Juha Ellä
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Apr 12, 2001
Inventors
Jyrki Kaitila
Juha Ellä
Assignee (at issue)
Nokia Mobile Phones Ltd.
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.