CK

Craig Knull

UT Ulterra Drilling Technologies: 3 patents #9 of 43Top 25%
HS Halliburton Energy Services: 1 patents #2,863 of 4,711Top 65%
PG Precision Drilling Technology Services Group: 1 patents #9 of 26Top 35%
Overall (All Time): #853,022 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9038752 Rotary drag bit Jason Maw 2015-05-26
8881848 Fixed cutter drill bit with rotating cutter disc Kevin Christenson 2014-11-11
8851204 Mud motor with integrated percussion tool and drill bit Justin Forbes 2014-10-07
6742609 Rotational impact drill assembly Peter J. Gillis, Ian Gillis 2004-06-01
6571888 Apparatus and method for directional drilling with coiled tubing Laurier E. Comeau, Ian Gillis 2003-06-03
6330912 Pack-off bushing Ian Gillis 2001-12-18