Granted Patent
Utility
US 6,815,669 · App. 10/082,803
Longitudinal field driven ion mobility filter and detection system
Inventors:
Raanan Miller, Markus Zahn
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Feb 21, 2002
Inventors
Raanan Miller
Markus Zahn
Assignee (at issue)
The Charles Stark Draper Laboratory, Inc.
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.