Granted Patent
Utility
US 6,731,838 · App. 09/724,770
Athermalization and pressure desensitization of diffraction grating based WDM devices
Inventors:
Robert H. Dueck, Gregory G. Cappiello
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Nov 28, 2000
Inventors
Robert H. Dueck
Gregory G. Cappiello
Assignee (at issue)
Confluent Photonics Corporation
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.