| 9784041 |
Drilling rig riser identification apparatus |
Nathan Kinert, Leon Ellison, Rheinhold Kammann, Manfred Worms, Clive Lam |
2017-10-10 |
| 8996382 |
Lips blockers, headsets and systems |
— |
2015-03-31 |
| 8423403 |
Price guarantee methods and systems |
— |
2013-04-16 |
| 8016037 |
Drilling rigs with apparatus identification systems and methods |
Robert Bloom, Leon Ellison, Reinhold Kammann, Manfred Worms, Clive Lam |
2011-09-13 |
| 7958715 |
Chain with identification apparatus |
Nathan Kinert, Leon Ellison, Reinhold Kammann, Manfred Worms, Clive Lam |
2011-06-14 |
| 7946356 |
Systems and methods for monitored drilling |
William L. Koederitz, Michael Porche, Graham Watson, Aaron C. Cooke, Leon Ellison +3 more |
2011-05-24 |
| 7484625 |
Shale shakers and screens with identification apparatuses |
Eric Scott, Leon Ellison, Reinhold Kammann, Clive Lam, Manfred Worms |
2009-02-03 |
| 7159654 |
Apparatus identification systems and methods |
Leon P. Ellison, Reinhold Kammann, Clive Lam, Manfred Worms |
2007-01-09 |