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Browse by Category: Main > Communications
Class Information
Number: 340/854.9
Name: Communications: electrical > Wellbore telemetering or control (e.g., subsurface tool guidance, data transfer, etc.) > Using a specific transmission medium (e.g., conductive fluid, annular spacing, etc.) > Cable or wire (e.g., conductor as support, etc.)
Description: Subject matter wherein an electrical information or control signal is transmitted over an electrical conductor forming an elongate element.


Sub-classes under this class:

Class Number Class Name Patents
340/855.1 Coupling connection structural feature 42
340/855.2 Single conductor cable or wire 32


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7592927 System and method for multiplexing traffic signals and bridge collapse detection Sep. 22, 2009
7554458 Downhole communication Jun. 30, 2009
7528736 Loaded transducer for downhole drilling components May. 5, 2009
7525264 Shunt regulation apparatus, systems, and methods Apr. 28, 2009
7522812 Coupling of communications signals to a power line Apr. 21, 2009
7504963 System and method for providing electrical power downhole Mar. 17, 2009
7474221 Marking of pipe joints Jan. 6, 2009
7468678 Downhole telemetry system for wired tubing Dec. 23, 2008
7420475 Well site communication system Sep. 2, 2008
7413021 Method and conduit for transmitting signals Aug. 19, 2008
7319410 Downhole transmission system Jan. 15, 2008
7277026 Downhole component with multiple transmission elements Oct. 2, 2007
7259689 Transmitting power and telemetry signals on a wireline cable Aug. 21, 2007
7248178 RF communication with downhole equipment Jul. 24, 2007
7212132 Downhole signal source May. 1, 2007
7158048 Identically programmed intelligent electrodes for use in geoelectrical surveys Jan. 2, 2007
7154413 Fused and sealed connector system for permanent reservoir monitoring and production control Dec. 26, 2006
7154412 High-power well logging method and apparatus Dec. 26, 2006
7151465 Method and apparatus for transmitting information between a salt-cavern and the surface of the ground Dec. 19, 2006
7119711 Communicating with an underground object Oct. 10, 2006
7081831 Time-domain signal cancellation in downhole telemetry systems Jul. 25, 2006
7026951 Data telemetry system for multi-conductor wirelines Apr. 11, 2006
6999517 Method and apparatus for transmission of data on multiple propagation modes with far-end cross-talk cancellation Feb. 14, 2006
6989764 Apparatus and method for downhole well equipment and process management, identification, and actuation Jan. 24, 2006
6914538 High-power well logging method and apparatus Jul. 5, 2005
6843119 Apparatus for measuring and recording data from boreholes Jan. 18, 2005
6816082 Communications system having redundant channels Nov. 9, 2004
6753791 Burst QAM downhole telemetry system Jun. 22, 2004
6727827 Measurement while drilling electromagnetic telemetry system using a fixed downhole receiver Apr. 27, 2004
6727828 Pressurized system for protecting signal transfer capability at a subsurface location Apr. 27, 2004
6587054 Electrical submersible pump cable Jul. 1, 2003
6587037 Method for multi-phase data communications and control over an ESP power cable Jul. 1, 2003
6552665 Telemetry system for borehole logging tools Apr. 22, 2003
6492898 Data transmission system for pipelines Dec. 10, 2002
6469636 High-power well logging method and apparatus Oct. 22, 2002
6459383 Downhole inductively coupled digital electronic system Oct. 1, 2002
6392317 Annular wire harness for use in drill pipe May. 21, 2002
6369718 Oil well monitoring and control system communication network Apr. 9, 2002
6348876 Burst QAM downhole telemetry system Feb. 19, 2002
6320820 High data rate acoustic telemetry system Nov. 20, 2001
6229453 Method to transmit downhole video up standard wireline cable using digital data compression techniques May. 8, 2001
6041872 Disposable telemetry cable deployment system Mar. 28, 2000
5995020 Downhole power and communication system Nov. 30, 1999
5945923 Device and method for transmitting information by electromagnetic waves Aug. 31, 1999
5914911 Method of recovering data acquired and stored down a well, by an acoustic path, and apparatus for implementing the method Jun. 22, 1999
5747750 Single well system for mapping sources of acoustic energy May. 5, 1998
5745047 Downhole electricity transmission system Apr. 28, 1998
5589825 Logging or measurement while tripping Dec. 31, 1996
5539375 Apparatus for transmitting instrumentation signals over power conductors Jul. 23, 1996
5521592 Method and apparatus for transmitting information relating to the operation of a downhole electrical device May. 28, 1996

1 2 3


 
 
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