Granted Patent
Utility
US 6,278,110 · App. 09/030,676
Orthogonal ion sampling for APCI mass spectrometry
Inventors:
James Apffel, Mark H. Werlich, James L. Bertsch, Paul C. Goodley
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Feb 25, 1998
Inventors
James Apffel
Mark H. Werlich
James L. Bertsch
Paul C. Goodley
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.