Granted Patent
Utility
US 6,559,022 · App. 10/053,980
Method for independent control of polycrystalline silicon-germanium in an HBT
Inventor:
Gregory D. U'Ren
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Jan 22, 2002
Inventor
Gregory D. U'Ren
Assignee (at issue)
Newport Fab, LLC
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.