Issued Patents All Time
Showing 51–75 of 87 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7156182 | Method and apparatus for one trip tubular expansion | John L. Baugh, Leopoldo S. Gomez, John P. Davis | 2007-01-02 |
| 7114559 | Method of repair of collapsed or damaged tubulars downhole | James Sonnier, John L. Baugh | 2006-10-03 |
| 7100700 | Downhole ball dropping apparatus | John P. Davis | 2006-09-05 |
| 6866104 | Drop in dart activated downhole vibration tool | Carl W. Stoesz, Joe DeGeare, Roy Swanson, James Sonnier, David B. Haughton | 2005-03-15 |
| 6679328 | Reverse section milling method and apparatus | John P. Davis | 2004-01-20 |
| 6607031 | Screened boot basket/filter | Gregory L. Hern | 2003-08-19 |
| 6464434 | Cutting matrix and method applying the same | — | 2002-10-15 |
| 6227313 | Anti-torque tool | John P. Davis | 2001-05-08 |
| 6167958 | Cutting matrix and method of applying the same | — | 2001-01-02 |
| 6155343 | System for cutting materials in wellbores | Gregory R. Nazzal | 2000-12-05 |
| 6125929 | Casing cutter blade support sleeve | John P. Davis | 2000-10-03 |
| 6041860 | Apparatus and method for performing imaging and downhole operations at a work site in wellbores | Gregory R. Nazzal, Paulo Tubel, John W. Harrell, James V. Leggett, III | 2000-03-28 |
| 6012526 | Method for sealing the junctions in multilateral wells | Steven L. Jennings, James Kenneth Whanger, Arne Gunnar Larsen, John L. Baugh, Brian Wood +8 more | 2000-01-11 |
| 6009948 | Resonance tools for use in wellbores | Bruce A. Flanders, Paulo Tubel, Ray Ballantyne | 2000-01-04 |
| 5979571 | Combination milling tool and drill bit | Danny E. Scott, Jack T. Oldham, Greg Nazzal, Roy Swanson, Brad Randall +1 more | 1999-11-09 |
| 5899268 | Downhole milling tool | Harold H. Harvey, Jr. | 1999-05-04 |
| 5829524 | High pressure casing patch | Bruce A. Flanders, John MacRae | 1998-11-03 |
| 5810079 | Downhole milling tool | Harold H. Harvey, Jr. | 1998-09-22 |
| 5775428 | Whipstock-setting apparatus | Jerry Davis | 1998-07-07 |
| 5678634 | Method and apparatus for retrieving a whipstock | Hans H. Rehbock, Ed Lueders, Bryan F. McKinley, John J. Johnson, Greg Nazzal | 1997-10-21 |
| 5494111 | Permanent whipstock | John P. Davis, Mark H. Lee, Arthur G. Alexander | 1996-02-27 |
| 5474126 | Retrievable whipstock system | Anthony Self, Mark H. Lee | 1995-12-12 |
| 5456312 | Downhole milling tool | Harold H. Harvey, Jr. | 1995-10-10 |
| 5423387 | Method for sidetracking below reduced-diameter tubulars | — | 1995-06-13 |
| 5404944 | Downhole makeup tool for threaded tubulars | Ralph D. Wright, Richard A. Sukup, Patrick R. Brand | 1995-04-11 |