Granted Patent
Utility
US 5,365,077 · App. 08/007,695
Gain-stable NPN heterojunction bipolar transistor
Inventors:
Robert A. Metzger, Madjid Hafizi, William E. Stanchina, Loren G. McCray
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Jan 22, 1993
Inventors
Robert A. Metzger
Madjid Hafizi
William E. Stanchina
Loren G. McCray
Assignee (at issue)
Hughes Aircraft Company
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.