Granted Patent
Utility
US 6,130,471 · App. 08/920,640
Ballasting of high power silicon-germanium heterojunction biploar transistors
Inventor:
Timothy E. Boles
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Aug 29, 1997
Inventor
Timothy E. Boles
Assignee (at issue)
Whitaker & 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.