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Showing 1 to 20 of 211 results

PATENT /PUB No. Country Patent Title Patent Owner Filing Date Issue/Pub Date Status
7018326 US Centrifuge with impellers and beach feed Apr 5, 2003 Mar 28, 2006 Granted
7331469 US Vibratory separator with automatically adjustable beach Apr 29, 2004 Feb 19, 2008 Granted
4850439 US Method and a drilling rig for drilling a bore well Jul 7, 1987 Jul 25, 1989 Granted
5050691 US Detachable torque transmitting tool joint Oct 10, 1989 Sep 24, 1991 Granted
6938779 US Screen assembly for a shale shaker Apr 21, 2003 Sep 6, 2005 Granted
5971159 US Screen assembly for a vibratory separator Jan 21, 1997 Oct 26, 1999 Granted
6932883 US Screens for vibratory separators Jul 31, 2002 Aug 23, 2005 Granted
6910587 US Gumbo separator methods and apparatuses Aug 2, 2002 Jun 28, 2005 Granted
4840061 US Method of detecting a fluid influx which could lead to a blow-out during the drilling of a borehole Jul 8, 1988 Jun 20, 1989 Granted
8265811 US Method and apparatus for active heave compensation Jun 3, 2009 Sep 11, 2012 Granted
6931748 US Riser and tubular inspection systems Apr 1, 2003 Aug 23, 2005 Granted
5419176 US Particle detection and analysis Jan 7, 1994 May 30, 1995 Granted
5309990 US Coiled tubing injector Jul 26, 1991 May 10, 1994 Granted
7303021 US Wellbore rig elevator systems Sep 20, 2005 Dec 4, 2007 Granted
5301723 US Apparatus and method of preventing ice accumulation on coupling valves for cryogenic fluids Nov 6, 1992 Apr 12, 1994 Granted
6029824 US Screen for vibrating separator Apr 22, 1998 Feb 29, 2000 Granted
6607080 US Screen assembly for vibratory separators Mar 28, 2001 Aug 19, 2003 Granted
6152307 US Vibratory separator screens Jan 11, 1999 Nov 28, 2000 Granted
7121295 US Internal blow out preventer ball and seat Oct 21, 2004 Oct 17, 2006 Granted
7320374 US Wellbore top drive systems May 28, 2005 Jan 22, 2008 Granted

Showing 1 to 20 of 211 results

*Note: Documents with disabled checkboxes are ancillary ones, so these cannot be added to portfolio.