Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8066084 | Drilling apparatus with reduced exposure of cutters and methods of drilling | Mark W. Dykstra, William Heuser, Theodore E. Zaleski, Jr., Jack T. Oldham, Terry D. Watts +3 more | 2011-11-29 |
| 7954571 | Cutting structures for casing component drillout and earth-boring drill bits including same | Eric E. McClain, John C. Thomas, Matthew R. Isbell, Jarod DeGeorge, Chad T. Jurica | 2011-06-07 |
| 7861809 | Rotary drag bit with multiple backup cutters | David Gavia, Ryan J. Hanford, Lane E. Snell, Jason E. Hoines, Matthew R. Isbell +1 more | 2011-01-04 |