Granted Patent
Utility
US 6,433,921 · App. 09/783,395
Multiwavelength pumps for raman amplifier systems
Inventors:
Yongan Wu, G. Victor Treyz
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Feb 15, 2001
Inventors
Yongan Wu
G. Victor Treyz
Assignee (at issue)
Onetta, 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.