Granted Patent
Utility
US 6,380,550 · App. 08/913,414
Electroluminescent device comprising porous silicon
Inventors:
Leigh Canham, Timothy I. Cox, Armando Loni, Andrew Simons, Richard Blacker
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Sep 17, 1997
Inventors
Leigh Canham
Timothy I. Cox
Armando Loni
Andrew Simons
Richard Blacker
Assignee (at issue)
The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
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.