Granted Patent
Utility
US 6,501,575 · App. 09/891,732
Routing in a WDM system
Inventors:
Ari Salomaa, Olli-Pekka Hiironen
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Jun 26, 2001
Inventors
Ari Salomaa
Olli-Pekka Hiironen
Assignee (at issue)
Nokia Networks Oy
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.