Granted Patent
Utility
US 6,817,373 · App. 10/426,587
One-directional microball valve for a microfluidic device
Inventors:
David M. Cox, Michael Harrold, Dennis Mead
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Apr 30, 2003
Inventors
David M. Cox
Michael Harrold
Dennis Mead
Assignee (at issue)
Applera Corporation
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.