Granted Patent
Utility
US 6,528,784 · App. 09/715,815
Mass spectrometer system including a double ion guide interface and method of operation
Inventors:
Keqi Tang, Alan E. Schoen, Jean-Jacques Dunyach
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Nov 16, 2000
Inventors
Keqi Tang
Alan E. Schoen
Jean-Jacques Dunyach
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.