Granted Patent
Utility
US 6,629,646 · App. 08/163,850
Droplet ejector with oscillating tapered aperture
Inventor:
Yehuda Ivri
Patented Case
View Patent ↗
Granted: Oct 7, 2003
Filed: Dec 7, 1993
Inventor
Yehuda Ivri
Assignee (at issue)
Aerogen, 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.