Granted Patent
Utility
US 6,504,859 · App. 09/489,243
Light sources based on semiconductor current filaments
Inventors:
Fred J. Zutavern, Guillermo M. Loubriel, Malcolm T. Buttram, Alan Mar, Wesley D. Helgeson, Martin W. O'Malley, Harold P. Hjalmarson, Albert G. Baca, Weng W. Chow, G. Allen Vawter
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Jan 21, 2000
Inventors
Fred J. Zutavern
Guillermo M. Loubriel
Malcolm T. Buttram
Alan Mar
Wesley D. Helgeson
Martin W. O'Malley
Harold P. Hjalmarson
Albert G. Baca
Weng W. Chow
G. Allen Vawter
Assignee (at issue)
Sandia 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.