Granted Patent
Utility
US 6,789,424 · App. 10/366,900
Highly sensitive accelerometer
Inventors:
Sverre Knudsen, Arne Berg, James Dunphy, Daniel M. Woo
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Feb 14, 2003
Inventors
Sverre Knudsen
Arne Berg
James Dunphy
Daniel M. Woo
Assignee (at issue)
Weatherford/Lamb, 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.