Granted Patent
Utility
US 5,631,477 · App. 08/490,440
Quaternary collector InAlAs-InGaAlAs heterojunction bipolar transistor
Inventors:
Dwight C. Streit, Aaron K. Oki, Liem T. Tran
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Jun 2, 1995
Inventors
Dwight C. Streit
Aaron K. Oki
Liem T. Tran
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.