Granted Patent
Utility
US 5,521,098 · App. 08/280,920
Thermionic ionization detector with flow-through thermionic source
Inventors:
Bruce W. Hermann, Richard P. White
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Jul 27, 1994
Inventors
Bruce W. Hermann
Richard P. White
Assignee (at issue)
Hewlett-Packard 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.