Granted Patent
Utility
US 6,185,235 · App. 09/199,031
Lasers with low doped gain medium
Inventors:
Emily Cheng, Dave R Dudley, William L. Nighan, Jr., James D. Kafka, David E. Spence, David S. Bell
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Nov 24, 1998
Inventors
Emily Cheng
Dave R Dudley
William L. Nighan, Jr.
James D. Kafka
David E. Spence
David S. Bell
Assignee (at issue)
Spectra Physics Lasers, 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.