Inventor

ZHANG YOUHE

US125 patents

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

ZHANG YOUHE

SMITH INTERNATIONAL

Rolling cutter

Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance

Cutting elements having cutting edges with continuous varying radii and bits incorporating the same

Modified cutters and a method of drilling with modified cutters

Thermally stable polycrystalline diamond cutting elements and bits incorporating the same

Polycrystalline diamond constructions having improved thermal stability

Cutter having shaped working surface with varying edge chamfer

Rolling cutter using pin, ball or extrusion on the bit body as attachment methods

Shaped cutter surface

Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements

Rolling cutter

Rolling cutter

Coating on PDC/TSP cutter for accelerated leaching

Rolling cutter with close loop retaining ring

Rolling cutter with bottom support

Matrix bit bodies with multiple matrix materials

Method for making a polycrystalline diamond insert drill bit body

Structure for polycrystalline diamond insert drill bit body

Cutter having shaped working surface with varying edge chamfer

Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements

Cutting elements having non-planar surfaces and tools incorporating the same

Customized drilling tools

Rolling cutter

Cutter assemblies, downhole tools incorporating such cutter assemblies and methods of making such downhole tools

Rolling cutter with side retention

Solid PCD cutter

Cutting elements retained within sleeves

Rolling cutter with improved rolling efficiency

Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance

Brazing methods for PDC cutters

Matrix bit bodies with multiple matrix materials

ZHANG YOUHE

Methods of forming thermally stable polycrystalline diamond cutters

Innovative cutting element and cutting structure using same

Cutter assemblies, downhole tools incorporating such cutter assemblies and methods of making such downhole tools

Thermally stable polycrystalline diamond cutting elements and bits incorporating the same

Modified cutters and a method of drilling with modified cutters

Polycrystalline diamond compact cutters with conic shaped end

Modified cutters and a method of drilling with modified cutters

Rolling cutter placement on PDC bits

Cutting elements with re-processed thermally stable polycrystalline diamond cutting layers, bits incorporating the same, and methods of making the same

SHEN YUELIN

Rolling cutter bit design

Rolling cutter

Rolling cutter

Rolling cutter assembled directly to the bit pockets

Polycrystalline diamond composites

Cutter geometry for increased bit life and bits incorporating the same

GRIFFO ANTHONY

Thermally stable ultra-hard material compact constructions

BELNAP J DANIEL

Cutting elements, methods for manufacturing such cutting elements, and tools incorporating such cutting elements

KESHAVAN MADAPUSI K

Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance

BURHAN YURI

Methods of attaching rolling cutters in fixed cutter bits using sleeve, compression spring, and/or pin(s)/ball(s)