Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10633939 | Drilling apparatus | — | 2020-04-28 |
| 9637995 | Drilling apparatus with continuous rotation while tubular is being added | — | 2017-05-02 |
| 7726418 | Method and apparatus for adding a tubular to drill string with diverter | — | 2010-06-01 |
| 7584796 | Drilling rig | — | 2009-09-08 |
| 7395855 | Radially moving slips | — | 2008-07-08 |
| 7322418 | Continuous circulation drilling method | — | 2008-01-29 |
| 7252151 | Drilling method | — | 2007-08-07 |
| 7252161 | Method and apparatus with slips assembly for coupling tubulars without interruption of circulation | — | 2007-08-07 |
| 7188683 | Drilling method | — | 2007-03-13 |
| 7140453 | Pipe handling apparatus | — | 2006-11-28 |
| 6739397 | Continuous circulation drilling method | — | 2004-05-25 |
| 6688394 | Drilling methods and apparatus | — | 2004-02-10 |
| 6591916 | Drilling method | — | 2003-07-15 |
| 6315051 | Continuous circulation drilling method | — | 2001-11-13 |