Granted Patent
Utility
US 6,745,853 · App. 10/265,028
Methods and apparatus for open hole drilling
Inventors:
Katherine Turner, Carey John Naquin
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Oct 4, 2002
Inventors
Katherine Turner
Carey John Naquin
Assignee (at issue)
Halliburton Energy Services, 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.