Granted Patent
Utility
US 5,815,054 · App. 08/863,404
Surface micromachined acoustic wave piezoelectric crystal with electrodes on raised ridges and in spaces therebetween
Inventors:
Bruce A. Vojak, Jiashi Yang, Jin Huang, John E. Mattson
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: May 27, 1997
Inventors
Bruce A. Vojak
Jiashi Yang
Jin Huang
John E. Mattson
Assignee (at issue)
Motorola, 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.