Granted Patent
Utility
US 6,369,603 · App. 09/615,960
Radio frequency coupling apparatus and method for measuring minority carrier lifetimes in semiconductor materials
Inventors:
Steven W. Johnston, Richard K. Ahrenkiel
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Jul 14, 2000
Inventors
Steven W. Johnston
Richard K. Ahrenkiel
Assignee (at issue)
Midwest Research Institute, 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.