Granted Patent
Utility
US 5,490,121 · App. 08/291,959
Nonlinear equalizer for measurement while drilling telemetry system
Inventors:
Wallace R. Gardner, G. A. Merchant
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Aug 17, 1994
Inventors
Wallace R. Gardner
G. A. Merchant
Assignee (at issue)
Halliburton
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.