Granted Patent
Utility
US 5,204,517 · App. 07/813,865
Method and system for control of a material removal process using spectral emission discrimination
Inventors:
Michael C. Cates, Richard R. Hamm, John D. Hoogerwerf
Patented Case
View Patent ↗
Granted: Apr 20, 1993
Filed: Dec 24, 1991
Inventors
Michael C. Cates
Richard R. Hamm
John D. Hoogerwerf
Assignee (at issue)
Maxwell Laboratories, 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.