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Class Information
Number: 166/243
Name: Wells > Miscellaneous (e.g., anchor pipes)
Description: Devices not provided for in other subclasses.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8640769 Multiple control line assembly for downhole equipment Feb. 4, 2014
8561694 Monitoring downhole production flow in an oil or gas Oct. 22, 2013
8448713 Inflatable tool set with internally generated gas May. 28, 2013
8424600 Methods and systems for treating subterranean wells Apr. 23, 2013
8137051 System and method for facilitating well construction Mar. 20, 2012
8006769 Shearing tool and methods of use Aug. 30, 2011
7942199 Method for installing wellbore string devices May. 17, 2011
7900708 Multiple-block downhole anchors and anchor assemblies Mar. 8, 2011
RE42030 Critical velocity reduction in a gas well Jan. 18, 2011
7779911 Method and means for providing time delay in downhole well operations Aug. 24, 2010
7748447 Torque anchor and method for using same Jul. 6, 2010
7530400 Downhole tool for selectively catching balls in a well bore May. 12, 2009
7455106 Polymer protective coated polymeric components for oilfield applications Nov. 25, 2008
7455114 Snorkel device for flow control Nov. 25, 2008
7431080 Anchor device to relieve tension from the rope socket prior to perforating a well Oct. 7, 2008
7431535 Clamp for anchoring production tube, electrohydraulic hose and electric cable simultaneously Oct. 7, 2008
7409998 Critical velocity reduction in a gas well Aug. 12, 2008
7337843 Solar blackbody waveguide for solar assisted oil recovery applications Mar. 4, 2008
7219728 Method and apparatus for generating downhole power May. 22, 2007
7090024 Tubing anchor Aug. 15, 2006
7007758 Cavity positioning tool and method Mar. 7, 2006
7000693 Control of hydrocarbon wells Feb. 21, 2006
6968897 Anti-rotation tool Nov. 29, 2005
6966366 Plunger enhanced chamber lift for well installations Nov. 22, 2005
RE38866 Pressure-boost device for downhole tools Nov. 8, 2005
6935423 Borehole retention device Aug. 30, 2005
6851479 Cavity positioning tool and method Feb. 8, 2005
6698516 Method for magnetizing wellbore tubulars Mar. 2, 2004
6675888 Method and system for moving equipment into and through an underground well Jan. 13, 2004
6619392 Blast joint assembly Sep. 16, 2003
6491116 Frac plug with caged ball Dec. 10, 2002
6454000 Cavity well positioning system and method Sep. 24, 2002
6454012 Tool string shock absorber Sep. 24, 2002
6378608 Apparatus and method for separating oil, water and solids Apr. 30, 2002
6325145 Pressure pulse attenuator Dec. 4, 2001
6318462 Downhole anti-rotation tool Nov. 20, 2001
6293340 Gas-lift-ball control device and oil producing method using said device Sep. 25, 2001
6273189 Downhole tractor Aug. 14, 2001
6216779 Downhole tool actuator Apr. 17, 2001
6199632 Selectively locking locator Mar. 13, 2001
6186234 Removal of lining from tubing Feb. 13, 2001
6155346 Downhole anchor Dec. 5, 2000
6062309 Torque roller anchor May. 16, 2000
5881824 Bottomhole assembly orienting sub Mar. 16, 1999
5860476 Method and apparatus for separating a well stream Jan. 19, 1999
5829528 Ignition suppression system for down hole antennas Nov. 3, 1998
5791412 Pressure-boost device for downhole tools Aug. 11, 1998
5711374 Method for cyclone separation of oil and water and an apparatus for separating of oil and water Jan. 27, 1998
5636690 Torque anchor Jun. 10, 1997
5549333 Blast joint Aug. 27, 1996

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