Inventor

HAAS JOHN D

US20 patents

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

HAAS JOHN D

3M INNOVATIVE PROPERTIES CO

Shaped, fractured abrasive particle, abrasive article using same and method of making

Abrasive article and method of making such article

Abrasive article and method of making such article

Structured abrasive with parabolic sides

Production tool to make abrasive particles with grooves

Structured abrasive articles and methods of using the same

Abrasive article with shaped abrasive particles with grooves

ERICKSON DWIGHT D

Shaped abrasive particles with an opening

Shaped, fractured abrasive particle, abrasive article using same and method of making

Shaped abrasive particles with an opening

CULLER SCOTT R

Dish-shaped abrasive particles with a recessed surface

Method of making abrasive shards, shaped abrasive particles with an opening, or dish-shaped abrasive particles

Structured abrasive article and method of using the same

MINNESOTA MINING & MFG

Abrasive article, a process for its manufacture, and a method of using it to reduce a workpiece surface

Abrasive article, a process of making same, and a method of using same to finish a workpiece surface

Abrasive article, a process for its manufacture, and a method of using it to reduce a workpiece surface

ADEFRIS NEGUS B

Shaped abrasive particles with a sloping sidewall

Shaped abrasive particles with a sloping sidewall

BODEN JOHN T

Shaped abrasive particles with grooves

3M INNOVATIVE PROPERTIES COMPANY

Production tool to make abrasive particles with grooves