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Class Information
Number: 166/75.14
Name: Wells > Above ground apparatus > Suspension means
Description: Above ground apparatus for hanging tubing within a well.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7416020 |
Wellhead isolation tool, wellhead assembly incorporating the same, and method of fracturing a well |
Aug. 26, 2008 |
| 7407011 |
Tubing annulus plug valve |
Aug. 5, 2008 |
| 7395855 |
Radially moving slips |
Jul. 8, 2008 |
| 7395867 |
Hybrid wellhead system and method of use |
Jul. 8, 2008 |
| 7377311 |
Wellhead valves |
May. 27, 2008 |
| 7322407 |
Wellhead isolation tool and method of fracturing a well |
Jan. 29, 2008 |
| 7308934 |
Fracturing isolation sleeve |
Dec. 18, 2007 |
| 7290612 |
Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
Nov. 6, 2007 |
| 7278490 |
Blast joint swivel for wellhead isolation tool and method of using same |
Oct. 9, 2007 |
| 7267168 |
Spider with discrete die supports |
Sep. 11, 2007 |
| 7159663 |
Hybrid wellhead system and method of use |
Jan. 9, 2007 |
| 7137454 |
Apparatus for facilitating the connection of tubulars using a top drive |
Nov. 21, 2006 |
| 7124828 |
Apparatus for retaining two strings of tubulars |
Oct. 24, 2006 |
| 7111688 |
Clamping well casings |
Sep. 26, 2006 |
| 7044216 |
Large diameter flush-joint pipe handling system |
May. 16, 2006 |
| 7040410 |
Adapters for double-locking casing mandrel and method of using same |
May. 9, 2006 |
| 7040407 |
Collet load shoulder |
May. 9, 2006 |
| 7040412 |
Adjustable hanger system and method |
May. 9, 2006 |
| 7013970 |
Central circulation completion system |
Mar. 21, 2006 |
| 6955225 |
Method of and apparatus for securing capillary tubing in a wellhead |
Oct. 18, 2005 |
| 6920925 |
Wellhead isolation tool |
Jul. 26, 2005 |
| 6918439 |
Backpressure adaptor pin and methods of use |
Jul. 19, 2005 |
| 6907934 |
Universal top-drive wireline entry system bracket and method |
Jun. 21, 2005 |
| 6868902 |
Multipurpose reeled tubing assembly |
Mar. 22, 2005 |
| 6857471 |
Split base plate assembly for multiple completion wellheads |
Feb. 22, 2005 |
| 6848520 |
Bushing for a drilling rig |
Feb. 1, 2005 |
| 6845814 |
Pipe-gripping structure having load rings |
Jan. 25, 2005 |
| 6834717 |
Tubing rotator |
Dec. 28, 2004 |
| 6820705 |
Friction support assembly for a slip bowl |
Nov. 23, 2004 |
| 6729392 |
Tubing hanger with ball valve in the annulus bore |
May. 4, 2004 |
| 6675900 |
Crossover tree system |
Jan. 13, 2004 |
| 6644401 |
Slip type casing hanger with integral high pressure isolation plate |
Nov. 11, 2003 |
| 6634423 |
Lifting top drive remote control cement head |
Oct. 21, 2003 |
| 6598673 |
Wellhead load ring |
Jul. 29, 2003 |
| 6595278 |
Assembly for locking a polished rod in a pumping wellhead |
Jul. 22, 2003 |
| 6581692 |
Making up and breaking out of a tubing string in a well white maintaining continuous circulation |
Jun. 24, 2003 |
| 6581691 |
Landing adapter for soft landing a tubing hanger in the bore of a production tree or wellhead housing |
Jun. 24, 2003 |
| 6557644 |
Adjustable tubing hanger assembly |
May. 6, 2003 |
| 6557643 |
Rod hanger and clamp assembly |
May. 6, 2003 |
| 6543546 |
Safety slip ram |
Apr. 8, 2003 |
| 6536541 |
Boring unit for pile foundations |
Mar. 25, 2003 |
| 6516875 |
Tubing hanger lockdown mechanism |
Feb. 11, 2003 |
| 6513593 |
Method and apparatus for reducing paraffin and asphaltene deposits in pumping oil wells |
Feb. 4, 2003 |
| 6508311 |
Apparatus, system and method for installing and retrieving pipe in a well |
Jan. 21, 2003 |
| 6453995 |
Tubing hanger saddle valve |
Sep. 24, 2002 |
| 6431286 |
Pivoting injector arrangement |
Aug. 13, 2002 |
| 6412552 |
Cable protector |
Jul. 2, 2002 |
| 6401811 |
Tool tie-down |
Jun. 11, 2002 |
| 6394201 |
Tubing spider |
May. 28, 2002 |
| 6386283 |
Elevator and spider converter |
May. 14, 2002 |
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