Granted Patent
Utility
US 6,822,241 · App. 10/264,599
Emitter device with focusing columns
Inventors:
David M. Schut, Alexander Govyadinov, Xioofeng Yang
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Oct 3, 2002
Inventors
David M. Schut
Alexander Govyadinov
Xioofeng Yang
Assignee (at issue)
Hewlett-Packard Development Company, L.P.
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.