Granted Patent
Utility
US 6,791,330 · App. 10/195,319
Well logging tool and method for determining resistivity by using phase difference and/or attenuation measurements
Inventor:
Dan Jay McCormick
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Jul 16, 2002
Inventor
Dan Jay McCormick
Assignee (at issue)
General Electric Company
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.