Issued Patents All Time
Showing 76–100 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6702012 | High pressure rotating drilling head assembly with hydraulically removable packer | Mike A. Luke | 2004-03-09 |
| 6655460 | Methods and apparatus to control downhole tools | Michael Nero, Timothy L. Wilson | 2003-12-02 |
| 6547002 | High pressure rotating drilling head assembly with hydraulically removable packer | Mike A. Luke | 2003-04-15 |
| 6547006 | Wellbore liner system | Marc Kuck, Monte Ira Johnson, Robert E. Robertson, Andrew Arthur Barry, Thurman James Carter +6 more | 2003-04-15 |
| 6454007 | Method and apparatus for casing exit system using coiled tubing | — | 2002-09-24 |
| 6202752 | Wellbore milling methods | Marc Kuck, Monte Ira Johnson, Robert E. Robertson, Andrew Arthur Barry, Thurman B. Carter +6 more | 2001-03-20 |
| 6170576 | Mills for wellbore operations | David J. Brunnert, Shane P. Hart, Michael W. Henson, David M. Haugen, Thurman B. Carter +1 more | 2001-01-09 |
| 6112810 | Remotely controlled assembly for wellbore flow diverter | Marc Kuck | 2000-09-05 |
| 6102123 | One trip milling system | Bruce D. Swearingen | 2000-08-15 |
| 6076606 | Through-tubing retrievable whipstock system | Timothy L. Wilson, Dustin G. Howell | 2000-06-20 |
| 5878818 | Mechanical set anchor with slips pocket | Joseph V. Hebert, John E. Campbell | 1999-03-09 |
| 5829531 | Mechanical set anchor with slips pocket | Joseph V. Hebert, John E. Campbell | 1998-11-03 |
| 5657820 | Two trip window cutting system | John E. Campbell, Joseph V. Hebert | 1997-08-19 |
| 5443129 | Apparatus and method for orienting and setting a hydraulically-actuatable tool in a borehole | Barry R. Scott | 1995-08-22 |
| 5431220 | Whipstock starter mill assembly | W. L. Lennon, Joseph V. Hebert, John E. Campbell | 1995-07-11 |
| 5427179 | Retrievable whipstock | John E. Campbell, Larry F. Moeller | 1995-06-27 |
| 5348107 | Pressure balanced inner chamber of a drilling head | Larry F. Moeller, John E. Campbell | 1994-09-20 |
| 5305839 | Turbine pump ring for drilling heads | Manmohan S. Kalsi, Patricio D. Alvarez, Larry F. Moeller | 1994-04-26 |
| 5213158 | Dual rotating stripper rubber drilling head | John E. Campbell | 1993-05-25 |
| 5154231 | Whipstock assembly with hydraulically set anchor | John E. Campbell, Larry F. Moeller | 1992-10-13 |
| 5082020 | Valve body for oilfield applications | John E. Campbell | 1992-01-21 |
| 5062479 | Stripper rubbers for drilling heads | Larry F. Moeller | 1991-11-05 |
| 5062450 | Valve body for oilfield applications | John E. Campbell | 1991-11-05 |
| 5048621 | Adjustable bent housing for controlled directional drilling | John E. Campbell | 1991-09-17 |
| 5040600 | Geothermal wellhead repair unit | James N. Strickland | 1991-08-20 |