Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9234392 | Drill bit with a flow interrupter | Geir Hareland, Jeff Janzen, John Kaminski | 2016-01-12 |
| 8899354 | Drill bit with a flow interrupter | Geir Hareland, Jeff Janzen, John Kaminski | 2014-12-02 |
| 8544567 | Drill bit with a flow interrupter | Geir Hareland, Jeff Janzen, John Kaminski | 2013-10-01 |
| 6571888 | Apparatus and method for directional drilling with coiled tubing | Ian Gillis, Craig Knull | 2003-06-03 |
| 6340063 | Steerable rotary directional drilling method | Elis Vandenberg, Edward James Cargill, John Hardin, Terrance Dean Maxwell, Bryan James Restau +3 more | 2002-01-22 |
| 6328119 | Adjustable gauge downhole drilling assembly | Ian Gillis, Gary M. Crase, Charles M. Reid, Paul Donald Roberts, Christopher Konschuh +2 more | 2001-12-11 |
| 6290002 | Pneumatic hammer drilling assembly for use in directional drilling | Ian Gillis, James Fehr, Christopher Konschuh | 2001-09-18 |
| 6244361 | Steerable rotary drilling device and directional drilling method | Elis Vandenberg, Edward James Cargill, John Hardin, Terrance Dean Maxwell, Bryan James Restau +3 more | 2001-06-12 |
| 6202746 | Fail-safe coupling for a latch assembly | Elis Vandenberg, Ian Gillis | 2001-03-20 |
| 6158533 | Adjustable gauge downhole drilling assembly | Ian Gillis, Gary M. Crase, Charles M. Reid, Paul Donald Roberts | 2000-12-12 |
| 6158513 | Multiple string completion apparatus and method | Radu Nicolae Nistor, Ian Gillis, Timothy E. LaGrange, Benji Smith, James Fehr | 2000-12-12 |
| 5778980 | Multicut casing window mill and method for forming a casing window | Elis Vandenberg, Ian Gillis | 1998-07-14 |
| 5762143 | System and method for placement and retrieval of a subsurface diverting tool used in drilling and completing wells | Elis Vandenberg, Ian Gillis | 1998-06-09 |
| RE35790 | System for drilling deviated boreholes | Randal H. Pustanyk | 1998-05-12 |
| 5615740 | Internal pressure sleeve for use with easily drillable exit ports | Ian Gillis, Elis Vandenberg | 1997-04-01 |
| 5602541 | System for drilling deviated boreholes | Randal H. Pustanyk, Nicholas Peter Wallis | 1997-02-11 |
| 5579829 | Keyless latch for orienting and anchoring downhole tools | Elis Vandenberg | 1996-12-03 |
| 5410303 | System for drilling deivated boreholes | Randal H. Pustanyk, Nicholas Peter Wallis | 1995-04-25 |
| 5293945 | Downhole adjustable stabilizer | Irwin Rosenhauch | 1994-03-15 |
| 5163521 | System for drilling deviated boreholes | Randal H. Pustanyk | 1992-11-17 |