Inventor

RADFORD STEVEN R

US83 patents

⚠️ This page may combine multiple inventors who share the name “RADFORD STEVEN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RADFORD STEVEN R

BAKER HUGHES INC

Expandable reamer apparatus for enlarging boreholes while drilling and methods of use

Expandable reamer apparatus for enlarging boreholes while drilling and methods of use

Surface modifications for rotary drill bits

Expandable stabilizer with roller reamer elements

Expandable reamer apparatus

Expandable reamer apparatus for enlarging boreholes while drilling

Method and composition for preserving core sample integrity using an encapsulating material

Expandable reamers for earth boring applications

Expandable reamer for subterranean boreholes and methods of use

Self-contained closure mechanism for a core barrel inner tube assembly

Expandable reamer apparatus for enlarging subterranean boreholes and methods of use

Reaming apparatus and method with enhanced structural protection

Expandable reamer for subterranean boreholes and methods of use

Moveable blades and bearing pads

Superabrasive cutting elements and drill bit so equipped

Expandable reamer assemblies, bottom-hole assemblies, and related methods

Stabilizer and reamer system having extensible blades and bearing pads and method of using same

Angled sidewall coring assembly and method of operation

Enhanced offset stabilization for eccentric reamers

Method for preserving core sample integrity

Shoe assembly with catcher for coring

Actuation mechanisms for downhole assemblies and related downhole assemblies and methods

Actuation assemblies, hydraulically actuated tools for use in subterranean boreholes including actuation assemblies and related methods

Expandable reamers and methods of using expandable reamers

Drill bit with self-adjusting pads

Expandable reamer tools

Drilling assemblies including expandable reamers and expandable stabilizers, and related methods

RADFORD STEVEN R

Expandable reamers for subterranean drilling and related methods

Expandable reamer apparatus and related methods

Stabilizer and reamer system having extensible blades and bearing pads and method of using same

Expandable apparatus and related methods

Earth-boring tools having expandable members and methods of making and using such earth-boring tools

Drilling assemblies including one of a counter rotating drill bit and a counter rotating reamer, methods of drilling, and methods of forming drilling assemblies

Remotely controlled apparatus for downhole applications and methods of operation

Stabilizer subs for use with expandable reamer apparatus, expandable reamer apparatus including stabilizer subs and related methods

Stabilizer assemblies with bearing pad locking structures and tools incorporating same

Remotely-controlled downhole device and method for using same

Status indicators for use in earth-boring tools having expandable members and methods of making and using such status indicators and earth-boring tools

Tools for use in subterranean boreholes having expandable members and related methods

Compound engagement profile on a blade of a down-hole stabilizer and methods therefor

Selectively actuating expandable reamers and related methods

Remotely controlled apparatus for downhole applications and related methods

CHRISTENSEN INC NORTON

Cammed and shrouded core catcher

Shrouded core catcher

Automatic drill pipe inside wiper

Self activating, positively driven concealed core catcher

EASTMAN CHRISTENSEN CO

Method and apparatus for coring with an in situ core barrel sponge

ENERGY VENTURES INC

Method and apparatus for taking an undisturbed core sample

BAKER HUGHES OILFIELD OPERATIONS INC

Expandable apparatus and related methods

BAKER HUGHES OILFIELD OPERATIONS LLC

Remotely controlled apparatus for downhole applications and methods of operation