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Class Information
Number: 175/73
Name: Boring or penetrating the earth > Means traveling with tool to constrain tool to bore along curved path
Description: Apparatus comprising means carried by or movable with a tool while drilling to cause the tool to drill a bore or segment of a bore having a nonlinear axis.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7610970 |
Apparatus for eliminating net drill bit torque and controlling drill bit walk |
Nov. 3, 2009 |
| 7600586 |
System for steering a drill string |
Oct. 13, 2009 |
| 7588100 |
Method and apparatus for directional drilling with variable drill string rotation |
Sep. 15, 2009 |
| 7559378 |
Portable and directional electrocrushing drill |
Jul. 14, 2009 |
| 7559379 |
Downhole steering |
Jul. 14, 2009 |
| 7552761 |
Method and system for wellbore communication |
Jun. 30, 2009 |
| 7543658 |
Directional drilling control |
Jun. 9, 2009 |
| 7510027 |
Borehole drilling control system, method and apparatus |
Mar. 31, 2009 |
| 7506696 |
Borehole drilling control system, method and apparatus |
Mar. 24, 2009 |
| 7506701 |
Drill bit assembly for directional drilling |
Mar. 24, 2009 |
| 7503405 |
Rotary valve for steering a drill string |
Mar. 17, 2009 |
| 7503408 |
Steering assembly and steering component |
Mar. 17, 2009 |
| 7497279 |
Jack element adapted to rotate independent of a drill bit |
Mar. 3, 2009 |
| 7484576 |
Jack element in communication with an electric motor and or generator |
Feb. 3, 2009 |
| 7467672 |
Orientation tool |
Dec. 23, 2008 |
| 7451835 |
Downhole turbine |
Nov. 18, 2008 |
| 7413034 |
Steering tool |
Aug. 19, 2008 |
| 7404454 |
Bit face orientation control in drilling operations |
Jul. 29, 2008 |
| 7383897 |
Downhole steering tool having a non-rotating bendable section |
Jun. 10, 2008 |
| 7377333 |
Linear position sensor for downhole tools and method of use |
May. 27, 2008 |
| 7373995 |
Method and apparatus for drilling curved boreholes |
May. 20, 2008 |
| 7360610 |
Drill bit assembly for directional drilling |
Apr. 22, 2008 |
| 7347282 |
Steerable soil penetration system |
Mar. 25, 2008 |
| 7347283 |
Using a rotating inner member to drive a tool in a hollow outer member |
Mar. 25, 2008 |
| 7334649 |
Drilling with casing |
Feb. 26, 2008 |
| 7320372 |
Jet assisted drilling method |
Jan. 22, 2008 |
| 7318490 |
Connection design and sonde housing assembly for a directional drill |
Jan. 15, 2008 |
| 7318492 |
Rotary drill bit |
Jan. 15, 2008 |
| RE39970 |
Downhole adjustable bent housing for directional drilling |
Jan. 1, 2008 |
| 7311156 |
Forward driving system for use in drilling masonry structures |
Dec. 25, 2007 |
| 7287604 |
Steerable bit assembly and methods |
Oct. 30, 2007 |
| 7287606 |
Drilling method for enlarging a borehole using a kick sub |
Oct. 30, 2007 |
| 7270197 |
Steerable soil displacement hammer |
Sep. 18, 2007 |
| 7270198 |
Orienter for drilling tool assembly and method |
Sep. 18, 2007 |
| 7258165 |
Hole opener and drillable casing guide and methods of use |
Aug. 21, 2007 |
| 7243739 |
Coiled tubing directional drilling apparatus |
Jul. 17, 2007 |
| 7228918 |
System and method for forming an underground bore |
Jun. 12, 2007 |
| 7225888 |
Hydraulic fluid coupling |
Jun. 5, 2007 |
| 7219751 |
Apparatus for guiding and steering an earth boring machine and casing assembly |
May. 22, 2007 |
| 7216726 |
Downhole fluid-tight flexible joint |
May. 15, 2007 |
| 7216724 |
Coupling for dual member pipe |
May. 15, 2007 |
| 7213643 |
Expanded liner system and method |
May. 8, 2007 |
| 7204325 |
Spring mechanism for downhole steering tool blades |
Apr. 17, 2007 |
| 7195082 |
Drill head steering |
Mar. 27, 2007 |
| 7195079 |
Directional reaming system |
Mar. 27, 2007 |
| 7195083 |
Three dimensional steering system and method for steering bit to drill borehole |
Mar. 27, 2007 |
| 7182153 |
Methods of casing drilling |
Feb. 27, 2007 |
| 7182154 |
Directional borehole drilling system and method |
Feb. 27, 2007 |
| 7172038 |
Well system |
Feb. 6, 2007 |
| 7152696 |
Method and control system for directional drilling |
Dec. 26, 2006 |
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