Granted Patent
Utility
US 5,869,381 · App. 08/939,186
RF power transistor having improved stability and gain
Inventors:
Francois Hebert, William McCalpin
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Sep 29, 1997
Inventors
Francois Hebert
William McCalpin
Assignee (at issue)
Spectrian Corporation
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.