Granted Patent
Utility
US 5,804,487 · App. 08/676,697
Method of fabricating high .beta.HBT devices
Inventor:
Michael D. Lammert
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Jul 10, 1996
Inventor
Michael D. Lammert
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.