Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9991354 | Metal nitride alloy contact for semiconductor | Travis J. Anderson, Virginia D. Wheeler, Andrew D. Koehler, Karl D. Hobart, Francis J. Kub +1 more | 2018-06-05 |
| 8281877 | Method and apparatus for drilling with casing | Jeff Habetz, David M. Haugen, Gary Thompson, Bernd-Georg Pietras, Jimmy L. Hollingsworth +1 more | 2012-10-09 |
| 8230933 | Top drive casing system | Randy Gene Snider, John Timothy Allen, Kevin L. Gray, Gary Thompson | 2012-07-31 |
| 8020627 | Equalized load distribution slips for spider and elevator | Karsten Heidecke | 2011-09-20 |
| 7918273 | Top drive casing system | Randy Gene Snider, John Timothy Allen, Kevin L. Gray, Gary Thompson | 2011-04-05 |
| 7845418 | Top drive torque booster | Karsten Heidecke | 2010-12-07 |
| 7793719 | Top drive casing system | Randy Gene Snider, John Timothy Allen, Kevin L. Gray, Gary Thompson | 2010-09-14 |
| 7712523 | Top drive casing system | Randy Gene Snider, Jim Allen, Kevin L. Gray, Gary Thompson | 2010-05-11 |
| 7694744 | One-position fill-up and circulating tool and method | — | 2010-04-13 |
| 7686088 | Equalized load distribution slips for spider and elevator | — | 2010-03-30 |
| 7665551 | Flush mounted spider | Karsten Heidecke | 2010-02-23 |
| 7654325 | Methods and apparatus for handling and drilling with tubulars or casing | Richard L. Giroux, Adrian Vuyk, Jr., Gary Thompson, Kevin L. Gray, John Timothy Allen +1 more | 2010-02-02 |
| 7594540 | Methods and apparatus for applying torque and rotation to connections | Thomas Koithan, Graham Ruark, John W. Newman, David M. Haugen | 2009-09-29 |
| 7509722 | Positioning and spinning device | Jeff Habetz, Jimmy L. Hollingsworth, Bernd Reinholdt | 2009-03-31 |
| 7503397 | Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly | Richard L. Giroux, Albert C. Odell, II, Gary Thompson, David M. Haugen, Tuong Thanh Le +2 more | 2009-03-17 |
| 7448456 | Adjustable rotating guides for spider or elevator | Karsten Heidecke | 2008-11-11 |
| 7325610 | Methods and apparatus for handling and drilling with tubulars or casing | Richard L. Giroux, Adrian Vuyk, Jr., Gary Thompson, Kevin L. Gray, John Timothy Allen +1 more | 2008-02-05 |
| 7296623 | Methods and apparatus for applying torque and rotation to connections | Thomas Koithan, Graham Ruark, John W. Newman, David M. Haugen | 2007-11-20 |
| 7143849 | Flush mounted spider | Karsten Heidecke | 2006-12-05 |
| 7140445 | Method and apparatus for drilling with casing | Jeff Habetz, David M. Haugen, Gary Thompson, Bernd-Georg Pietras, Jimmy L. Hollingsworth +1 more | 2006-11-28 |
| 6994176 | Adjustable rotating guides for spider or elevator | Karsten Heidecke | 2006-02-07 |
| 6892835 | Flush mounted spider | Karsten Heidecke | 2005-05-17 |
| 6536520 | Top drive casing system | Randy Gene Snider, Jim Allen, Kevin L. Gray, Gary Thompson | 2003-03-25 |