Granted Patent
Utility
US 6,801,107 · App. 10/037,661
Vacuum electron device with a photonic bandgap structure and method of use thereof
Inventors:
Chiping Chen, Michael Shapiro, Jagadishwar R. Sirigiri, Richard J. Temkin
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Jan 4, 2002
Inventors
Chiping Chen
Michael Shapiro
Jagadishwar R. Sirigiri
Richard J. Temkin
Assignee (at issue)
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
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.