Inventor

DOURFAYE ALFAZAZI

FR21 patents

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

DOURFAYE ALFAZAZI

DOURFAYE ALFAZAZI

Auto adaptable cutting structure

Backfilled polycrystalline diamond cutter with high thermal conductivity

Impregnated rotary bit

Sectorial force balancing of drill bits

Impregnated rotary bit

Impregnated rotary bit

Process for the production of an element comprising at least one block of dense material constituted by hard particles dispersed in a binder phase: application to cutting or drilling tools

Process for the production of a thermally stable polycrystalline diamond compact

REESE MICHAEL R

Method and apparatus for testing superhard material performance

Synthetic materials for PDC cutter testing or for testing other superhard materials

Synthetic materials for PDC cutter testing or for testing other superhard materials

Synthetic materials for PDC cutter testing or for testing other superhard materials

VAREL EUROPE S A S

Fixed cutter drill bit having core receptacle with concave core cutter

Drill bit with multiple cutting structures

Drill bit having a weight on bit reducing effect

VAREL INTERNATIONAL INC

Superabrasive cutting element

VAREL INT IND LP

Polycrystalline diamond cutter with high thermal conductivity

VAREL INTERNATIONAL LTD

Spiral wave bladed drag bit

VAREL EUROPE SAS

Method for reducing intermetallic compounds in matrix bit bondline

COLIN CHRISTOPHE

Process for manufacturing a part comprising a block of dense material constituted of hard particles and of binder phase having a gradient of properties, and resulting part

THIGPEN GARY M

Downhole acoustic emission formation sampling