Granted Patent
Utility
US 6,820,367 · App. 10/245,262
Drill/injector combination for plug fertilization at lift
Inventors:
Marc-Andre Poirier, John A. Kitchen, Mark Ingram, Ted Bay, Andrew Jackson, Kyle Krushelniski, Philip J. Leduc, Troy Lucyshyn, Bradley Pauli, Andrew Rauert
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Sep 16, 2002
Inventors
Marc-Andre Poirier
John A. Kitchen
Mark Ingram
Ted Bay
Andrew Jackson
Kyle Krushelniski
Philip J. Leduc
Troy Lucyshyn
Bradley Pauli
Andrew Rauert
Assignee (at issue)
Pacific Regeneration Technologies 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.