MECHANICS-ELECTRONICS-HYDRAULICS INTEGRATED DIRECTIONAL TOOL FOR CONTINUOUS TUBING DRILLING

DRILLING ROBOT

AIR ROTARY SYSTEM FOR A DOWN HOLE DRILL ASSEMBLY

WIRELINE INTERVENTION TOOL STRING

BOTTOM HOLE APPARATUS RPM REGULATOR

Transmission drive for downhole tools

CLUTCH ASSEMBLY AND RELATED SYSTEMS AND METHODS

DOWNHOLE WIRELINE TOOL

All-metal intelligent control motor

DOWNHOLE TORQUE REDUCER

Systems and methods that use harmonic drives for converting reciprocating axial motion to continuous rotary motion, helical drives for converting reciprocating rotary motion to reciprocating axial motion and combinations thereof for converting reciprocating rotary motion to continuous rotary motion

DOWNHOLE ROTARY DRIVE APPARATUS

TORQUE-ADAPTIVE IMPACT TOOL SUITABLE FOR PDC BIT

Spectacle blind swinging devices and related methods

Clutch assembly and related systems and methods

Hole opener

ROTATIONAL SPEED REDUCTION IN DOWNHOLE TOOL ASSEMBLIES

Double acting rotary and hammering tool

Square pile construction method and equipment of a rotary drilling rig

Rotary drive arrangement for a drill rod

Offset coupling for mud motor drive shaft

ROTARY GUIDING TOOL AND TRANSMISSION DEVICE

Systems and methods that use harmonic drives for converting reciprocating axial motion to continuous rotary motion, helical drives for converting reciprocating rotary motion to reciprocating axial motion and combinations thereof for converting reciprocating rotary motion to continuous rotary motion

Modular anti-rotation drilling systems and methods

Drive shaft assembly for downhole drilling motors

Shear pin and drive shaft spring brake in electrical submersible pump

Downhole power drilling tool having multi-stage dual plunger eccentric gear mechanism

Portable seafloor drill rig for submersible for multi-point core drilling

Hybrid hydraulic fracturing system

Drill speeder and drilling device

POWER DRIVE SYSTEM FOR FRACTURING PUMP

Induced drilling method for inertia constrained implicated motion and inertial constraint induced drilling device

Ground drilling device, system comprising the ground drilling device, method for producing a ground drilling device, and use of a ground drilling device

Device for prevention of turbine rotation

Pulling tool for use in a wellbore and/or tubing and a propulsion module of a pulling tool

Downhole tractor for use in a wellbore

Downhole tool assembly advancement through wellbore

Rotational speed reduction in downhole tool assemblies

Downhole clutch joint for multi-directionally rotating downhole drilling assembly

Harmonic gear drive

Transmission device

Axial-to-rotary movement configuration, method and system

Hydraulic motor for a drilling system

Downhole clutch joint for multi-directionally rotating downhole drilling assembly

Earth-boring drill bits with controlled cutter speed across the bit face, and related methods

Systems and methods that use harmonic drives for converting reciprocating axial motion to continuous rotary motion, helical drives for converting reciprocating rotary motion to reciprocating axial motion and combinations thereof for converting reciprocating rotary motion to continuous rotary motion

Slick line, fiber optic cable or tubing wellbore pulling tool and propulsion module

High torque constant velocity joint for downhole drilling power transmission

Bearing section for a positive displacement mud motor for use in directional earth drilling

Systems and devices using hard bearings

Torsion impact speed acceleration device

BHA transmission with laminated rubber bearings

Mast with rack assembly

DRIVE SHAFT ASSEMBLY

Articulating assembly for transmitting rotation between angularly offset members

Downhole tool string

Systems and devices using hard bearings

Drilling type sidewall coring apparatus

Universal joint

Universal joint

Vertical shaft drilling rig using novel drilling method

Mitigating stick-slip effects in rotary steerable tools

Universal joint

Drive shaft assembly

Closed-loop speed/position control mechanism

Constant velocity joint apparatus, systems, and methods

Full contact joint assembly

Top surface drilling device and methods for drilling a core in a top surface

Nutating fluid-mechanical energy converter to power wellbore drilling

Rotary steerable drilling system

Apparatus for drilling deeper and wider well bore with casing

Directional drilling apparatus and methods

Downhole tool and method to boost fluid pressure and annular velocity

Independent modification of drill string portion rotational speed

Systems and methods for core recovery

Down hole harmonic drive transmission

Roll reduction system for rotary steerable system

Rotatable wireline tool of enhanced hydraulic drive consistency

Controllable Mechanical Transmission For Downhole Applications

SYSTEM TO ENABLE GEOTHERMAL FIELD INTERACTION WITH EXISTING HVAC SYSTEMS, METHOD TO ENABLE GEOTHERMAL FIELD INTERACTION WITH EXISTING HVAC SYSTEM

Well tractor

Downhole motor

CONSTANT VELOCITY DEVICE FOR DOWNHOLE POWER GENERATION

Positionable downhole gear box

Drilling assembly with high-speed motor gear system

Systems and methods for increasing the life of downhole driveshaft assemblies

Downhole motor coupling systems and methods

CV joint for down hole motor and method

Systems and methods for limiting torque transmission

Variable diameter pipe clamp apparatus and torque module therefore

Drive shaft assembly for a downhole motor

Locking clutch for downhole motor

Downhole rotational lock mechanism

Downhole torque limiting assembly for drill string

Device and method usable in well drilling and other well operations

Magnetic gear for use with wellbore instruments

Downhole driving unit having a spring member for assembling a hydraulic motor housing

Downhole driving unit having a hydraulic motor with a planetary gearing system

Centering coupling for splined shafts submersible pumping systems and electrical submersible pumps

Impulse-type underground supercharged jet drilling method and device

Progressive Dual-Shaft Drill Head and Systems and Methods Thereof

Running tool

Drive shaft universal joint assembly with radial elliptical projections

High temperature drilling motor drive with cycloidal speed reducer

Rotatable wireline tool of enhanced hydraulic drive consistency

Coiled tubing orienter tool with high torque planetary gear stage design drive

Locking clutch for downhole motor

Downhole motor

Helical drilling apparatus, systems, and methods

Center discharge gas turbodrill

Methods and apparatus for drilling directional wells by percussion method

Self-circulating drill bit

Helical drilling apparatus, systems, and methods

Downhole tool actuation

Downhole tool actuation

Adjustable downhole motors and methods for use

Drilling apparatus and system for drilling wells

Coupling For Downhole Tools

Drilling apparatus and method for drilling wells

CENTERING COUPLING FOR ELECTRICAL SUBMERSIBLE PUMP SPLINED SHAFTS

CENTERING COUPLING FOR ELECTRICAL SUBMERSIBLE PUMP SPLINED SHAFTS

Downhole generator for drillstring instruments

Methods and apparatus for drilling directional wells by percussion method

Downhole drilling tool

Drive system

Locking clutch for downhole motor

Drilling apparatus and system for drilling wells

Drilling apparatus and system for drilling wells

Downhole drilling tool

System for steering a drill string

Right angle driving tool

Device for drilling a bore in the ground

Wellbore motor having magnetic gear drive

Wellbore motor having magnetic gear drive

Downhole drilling tool

Method and apparatus for forming bored hole

Device for advancing drillings in the ground

Coiled tubing directional drilling apparatus

Three dimensional steering system and method for steering bit to drill borehole

Systems and methods for performing mud pulse telemetry using a continuously variable transmission

Bottom hole assembly for rotary drilling

Gear reducer

Motor cooling and debris management during milling

Air rotary system for a down hole drill assembly

Systems and methods for employing multiple downhole drilling motors