Granted Patent
Utility
US 5,406,114 · App. 08/159,598
Bipolar high-frequency transistor
Inventors:
Knut Brenndoerfer, Jakob Huber
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: Dec 1, 1993
Inventors
Knut Brenndoerfer
Jakob Huber
Assignee (at issue)
Siemens Aktiengesellschaft
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.