Granted Patent
Utility
US 6,571,888 · App. 09/853,686
Apparatus and method for directional drilling with coiled tubing
Inventors:
Laurier E. Comeau, Ian Gillis, Craig Knull
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: May 14, 2001
Inventors
Laurier E. Comeau
Ian Gillis
Craig Knull
Assignee (at issue)
Precision Drilling Technology Services Group, 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.