Granted Patent
Utility
US 6,728,439 · App. 10/393,897
Electromagnetic mode conversion in photonic crystal multimode waveguides
Inventors:
Ori Weisberg, Steven G. Johnson, John D. Joannopoulos, Michael Shapiro, Yoel Fink, Mihai Ibanescu
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Mar 21, 2003
Inventors
Ori Weisberg
Steven G. Johnson
John D. Joannopoulos
Michael Shapiro
Yoel Fink
Mihai Ibanescu
Assignee (at issue)
OmniGuide Communications
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.