Granted Patent
Utility
US 4,843,037 · App. 07/087,420
Passivation of indium gallium arsenide surfaces
Inventors:
Eli Yablonovitch, Thomas J. Gmitter
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Aug 21, 1987
Inventors
Eli Yablonovitch
Thomas J. Gmitter
Assignee (at issue)
Bell Communications Research, Inc.
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.