Granted Patent
Utility
US 6,805,303 · App. 10/232,828
Liquid droplet spray device
Inventors:
Joseph Hess, Bo Hu
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Sep 3, 2002
Inventors
Joseph Hess
Bo Hu
Assignee (at issue)
MICROFLOW ENGINEERING SA
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.