Granted Patent
Utility
US 6,802,378 · App. 10/325,639
Method of and apparatus for directional drilling
Inventors:
Marc Haci, Eric E. Maidla
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Dec 19, 2002
Inventors
Marc Haci
Eric E. Maidla
Assignee (at issue)
Noble Engineering and Development Ltd.
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.