Granted Patent
Utility
US 6,794,671 · App. 10/196,714
Sensors and methods for high-sensitivity optical particle counting and sizing
Inventors:
David F. Nicoli, Paul Toumbas
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Jul 17, 2002
Inventors
David F. Nicoli
Paul Toumbas
Assignee (at issue)
Particle Sizing Systems, 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.