Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8245774 | Whipstock assembly for forming a window within a wellbore casing | Thomas M. Redlinger, David J. Brunnert | 2012-08-21 |
| 8146682 | Apparatus and methods of milling a restricted casing shoe | Bill Rhinehart, Thomas M. Redlinger, Wei Jake Xu, Hubert E. Halford, Martin Alfred Stulberg | 2012-04-03 |
| 8082988 | Apparatus and method for stabilization of downhole tools | Thomas M. Redlinger, Christopher M. Vreeland, Jerry W. Fisher, Thomas F. Bailey | 2011-12-27 |
| 7984763 | Full bore lined wellbores | David J. Brunnert, David M. Haugen | 2011-07-26 |
| 7487835 | Method of developing a re-entry into a parent wellbore from a lateral wellbore, and bottom hole assembly for milling | Robert E. Robertson, Hubert E. Halford, Thomas M. Redlinger | 2009-02-10 |
| 7413020 | Full bore lined wellbores | David J. Brunnert, David M. Haugen | 2008-08-19 |
| 7353867 | Whipstock assembly and method of manufacture | Thomas M. Redlinger, David J. Brunnert | 2008-04-08 |
| 6364037 | Apparatus to actuate a downhole tool | David J. Brunnert, David M. Haugen, Gary Duron Ingram, David W. Teale | 2002-04-02 |
| 6209636 | Wellbore primary barrier and related systems | John D. Roberts, Jan Drechsler, Tom Salversen, Tom Unsgaard, Eirik Enerstvedt +2 more | 2001-04-03 |
| 6202752 | Wellbore milling methods | Marc Kuck, Thomas F. Bailey, Monte Ira Johnson, Robert E. Robertson, Andrew Arthur Barry +6 more | 2001-03-20 |
| 6170576 | Mills for wellbore operations | David J. Brunnert, Shane P. Hart, Thomas F. Bailey, Michael W. Henson, David M. Haugen +1 more | 2001-01-09 |
| 6155349 | Flexible wellbore mill | Robert E. Robertson, Timothy L. Wilson, William A. Blizzard, Jr., Guy L. McClung, III | 2000-12-05 |
| 6112812 | Wellbore milling method | — | 2000-09-05 |
| 6070670 | Movement control system for wellbore apparatus and method of controlling a wellbore tool | Michael A. Luke, John D. Roberts | 2000-06-06 |
| 6056056 | Whipstock mill | Douglas Glenn Durst, Robert E. Robertson, Paul J. Johantges, Charles W. Pleasants, William A. Blizzard, Jr. +2 more | 2000-05-02 |
| 6039118 | Wellbore tool movement control and method of controlling a wellbore tool | Michael A. Luke, John D. Roberts | 2000-03-21 |
| 6035939 | Wellbore anchor system | — | 2000-03-14 |
| 6024168 | Wellborne mills & methods | Mark Kuck, William A. Blizzard, Jr., Guy L. McClung, III | 2000-02-15 |
| 5984005 | Wellbore milling inserts and mills | Shane P. Hart, Robert Taylor, Christopher P. Hutchinson, Guy L. McClung, III | 1999-11-16 |
| 5887655 | Wellbore milling and drilling | David M. Haugen, William A. Blizzard, Jr., Mark W. Schnitker, Steve R. Delgado, John D. Roberts +4 more | 1999-03-30 |
| 5836387 | System for securing an item in a tubular channel in a wellbore | — | 1998-11-17 |
| 5826651 | Wellbore single trip milling | Mark H. Lee, William A. Blizzard, Jr., Richard M. Ward | 1998-10-27 |
| 5806595 | Wellbore milling system and method | Dale Langford, Robert E. Robertson, Charles W. Pleasants, Guy L. McClung, III | 1998-09-15 |
| 5787978 | Multi-face whipstock with sacrificial face element | Paul J. Johantges, Charles W. Pleasants | 1998-08-04 |
| 5743331 | Wellbore milling system | Courtney W. Adkins, William A. Blizzard, Jr., Richard M. Ward | 1998-04-28 |