Granted Patent
Utility
US 5,378,922 · App. 07/954,228
HBT with semiconductor ballasting
Inventor:
Emilio A. Sovero
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Sep 30, 1992
Inventor
Emilio A. Sovero
Assignee (at issue)
Rockwell International 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.