Granted Patent
Utility
US 5,446,306 · App. 08/166,338
Thin film voltage-tuned semiconductor bulk acoustic resonator (SBAR)
Inventors:
Robert B. Stokes, Jay D. Crawford, Drew Cushman, Alvin M. Kong
Patented Case
View Patent ↗
Granted: Aug 29, 1995
Filed: Dec 13, 1993
Inventors
Robert B. Stokes
Jay D. Crawford
Drew Cushman
Alvin M. Kong
Assignee (at issue)
TRW Limited
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.