|
| US4504195 | 20 Jun 1983 | 12 Mar 1985 | Armco Inc. | Jet pump for oil wells |
| US5683227 | 28 Nov 1994 | 4 Nov 1997 | SMC Corporation | Multistage ejector assembly |
| US6648081 | 8 Mar 2002 | 18 Nov 2003 | Deep Vision LLP | Subsea wellbore drilling system for reducing bottom hole pressure |
| US6957698 | 23 Jun 2003 | 25 Oct 2005 | Baker Hughes Incorporated | Downhole activatable annular seal assembly |
| US6981561 | 2 Sep 2003 | 3 Jan 2006 | Baker Hughes Incorporated | Downhole cutting mill |
| US7096975 | 25 Mar 2004 | 29 Aug 2006 | Baker Hughes Incorporated | Modular design for downhole ECD-management devices and related methods |
| US7114581 | 20 Feb 2004 | 3 Oct 2006 | Deep Vision LLC | Active controlled bottomhole pressure system & method |
| US7174975 | 9 Sep 2004 | 13 Feb 2007 | Baker hughes Incorporated | Control systems and methods for active controlled bottomhole pressure systems |
| US7270185 | 9 Jul 2002 | 18 Sep 2007 | Baker Hughes Incorporated | Drilling system and method for controlling equivalent circulating density during drilling of wellbores |
| US7353887 | 8 Sep 2005 | 8 Apr 2008 | Baker Hughes Incorporated | Control systems and methods for active controlled bottomhole pressure systems |
| US7806203 | 16 Jun 2006 | 5 Oct 2010 | Baker Hughes Incorporated | Active controlled bottomhole pressure system and method with continuous circulation system |
| US8011450 | 21 Jul 2006 | 6 Sep 2011 | Baker Hughes Incorporated | Active bottomhole pressure control with liner drilling and completion systems |
