Granted Patent
Utility
US 6,298,930 · App. 09/383,228
Drill bits with controlled cutter loading and depth of cut
Inventors:
L. Allen Sinor, Wayne R. Hansen, Mark W. Dykstra, Craig H. Cooley, Gordon A. Tibbitts
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Aug 26, 1999
Inventors
L. Allen Sinor
Wayne R. Hansen
Mark W. Dykstra
Craig H. Cooley
Gordon A. Tibbitts
Assignee (at issue)
Baker Hughes Holdings LLC
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.