Granted Patent
Utility
US 6,239,549 · App. 09/004,911
Electron multiplier electron source and ionization source using it
Inventor:
Bruce Laprade
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Jan 9, 1998
Inventor
Bruce Laprade
Assignee (at issue)
Burle Technologies, LLC
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.