| 8037949 |
Pipe running tool |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger +1 more |
2011-10-18 |
| 7753138 |
Pipe running tool having internal gripper |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger +3 more |
2010-07-13 |
| 7699121 |
Pipe running tool having a primary load path |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger +3 more |
2010-04-20 |
| 7591304 |
Pipe running tool having wireless telemetry |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger +2 more |
2009-09-22 |
| 7510006 |
Pipe running tool having a cement path |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger +3 more |
2009-03-31 |
| 7096977 |
Pipe running tool |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Dieter Boettger +1 more |
2006-08-29 |
| 6938709 |
Pipe running tool |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Dieter Boettger +1 more |
2005-09-06 |
| 6691801 |
Load compensator for a pipe running tool |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen |
2004-02-17 |
| 6637526 |
Offset elevator for a pipe running tool and a method of using a pipe running tool |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen |
2003-10-28 |
| 6443241 |
Pipe running tool |
George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen |
2002-09-03 |
| 4320915 |
Internal elevator |
Roderick K. Abbott, Padmasiri Daya Seneviratne |
1982-03-23 |