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Class Information
Number: 175/40
Name: Boring or penetrating the earth > With signaling, indicating, testing or measuring
Description: Process or apparatus combined with a step or means for measuring, testing, signaling, indicating, detecting, registering or recording a condition for the benefit of an observer.










Sub-classes under this class:

Class Number Class Name Patents
175/42 Indicating agent released in drilling fluid 31
175/50 Indicating, testing or measuring a condition of the formation 493
175/48 Measuring or indicating drilling fluid (1) pressure, or (2) rate of flow 277
175/44 Providing identifiable indication of core position in situ for core sample orientation 31
175/41 Ray energy detection or measuring 36
175/46 Signaling or indicating condition of cutting in cuttings retainer 26
175/45 Tool position direction or inclination measuring or indicating within the bore 676
175/49 Transparent inspection feature 10


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Patent Number Title Of Patent Date Issued
8704523 Measuring casing attenuation coefficient for electro-magnetics measurements Apr. 22, 2014
8705318 Data aggregation for drilling operations Apr. 22, 2014
8689902 Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock Apr. 8, 2014
8684108 System and method for monitoring and controlling underground drilling Apr. 1, 2014
8657035 Systems and methods for providing wireless power transmissions and tuning a transmission frequency Feb. 25, 2014
8651175 Top drive output torque measurement method Feb. 18, 2014
8648733 Electromagnetic telemetry assembly with protected antenna Feb. 11, 2014
8640790 Apparatus, system and method for motion compensation using wired drill pipe Feb. 4, 2014
8640791 System and method for monitoring and controlling underground drilling Feb. 4, 2014
8636060 Monitoring downhole conditions with drill string distributed measurement system Jan. 28, 2014
8636087 Rotating control system and method for providing a differential pressure Jan. 28, 2014
8634274 Spindle for mud pulse telemetry applications Jan. 21, 2014
8631882 Drilling rig with torque measuring top drive Jan. 21, 2014
8631864 Durability of downhole tools Jan. 21, 2014
8600679 System and method to locate, monitor and quantify friction between a drillstring and a wellbore Dec. 3, 2013
8596381 Sensor on a formation engaging member of a drill bit Dec. 3, 2013
8596380 System and method for assessing hydrogen sulfide in a hydrocarbon extraction well in situ in an ongoing manner Dec. 3, 2013
8596379 System and method for assessing hydrogen sulfide in a hydrocarbon extraction well in situ in an ongoing manner Dec. 3, 2013
8579045 Rock drilling device and drill rig incorporating a device for measuring the location of the drilling machine Nov. 12, 2013
8573326 Method and apparatus to adjust weight-on-bit/torque-on-bit sensor bias Nov. 5, 2013
8567524 Downhole apparatus with a wireless data communication device between rotating and non-rotating members Oct. 29, 2013
8561721 Drill head connection Oct. 22, 2013
8556000 Device for monitoring a drilling or coring operation and installation comprising such a device Oct. 15, 2013
8547245 System and method for downhole telemetry Oct. 1, 2013
8534381 High LCM positive pulse MWD component Sep. 17, 2013
8528661 Drill bit with electrical power generation devices Sep. 10, 2013
8522896 Consistent drilling fluids engineering and management Sep. 3, 2013
8499830 Method to detect casing point in a well from resistivity ahead of the bit Aug. 6, 2013
8502696 Dual wellbore telemetry system and method Aug. 6, 2013
8490717 Downhole magnetic measurement while rotating and methods of use Jul. 23, 2013
8485277 Bottom-hole assembly, and a method and system for transmitting data from a bottom-hole assembly Jul. 16, 2013
8479841 Assembly for drilling and logging, method for drilling and logging and device for electro pulse drilling Jul. 9, 2013
8474548 Measurement while drilling apparatus and method of using the same Jul. 2, 2013
8471560 Measurements in non-invaded formations Jun. 25, 2013
8462013 Apparatus, system, and method for communicating while logging with wired drill pipe Jun. 11, 2013
8443883 Apparatus and method for detecting poor hole cleaning and stuck pipe May. 21, 2013
8443915 Through drillstring logging systems and methods May. 21, 2013
8439130 Method and apparatus for seismic data acquisition during drilling operations May. 14, 2013
8433520 Job monitoring methods and apparatus for logging-while-drilling equipment Apr. 30, 2013
8408330 Systems and methods for canceling noise and/or echoes in borehole communication Apr. 2, 2013
8397810 Wireless tag tracer method Mar. 19, 2013
8393411 Method for controlling loss of drilling fluid Mar. 12, 2013
8386181 System and method for bent motor cutting structure analysis Feb. 26, 2013
8378842 Downhole component with an electrical device in a blind-hole Feb. 19, 2013
8376065 Monitoring drilling performance in a sub-based unit Feb. 19, 2013
8378841 Tracking of oil drilling pipes and other objects Feb. 19, 2013
8371396 Communication connections for wired drill pipe joints Feb. 12, 2013
8362915 System and method for determining stretch or compression of a drill string Jan. 29, 2013
8355815 Methods, systems, and devices for manipulating cutting elements for earth-boring drill bits and tools Jan. 15, 2013
8326538 Mobile wellsite monitoring Dec. 4, 2012

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