ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,312, issued on April 29, was assigned to MINPRAXIS SOLUTIONS LTD. (Vancouver, Canada).
"Rock hardness measurement" was invented by Stefan Nadolski (Vancouver, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of facilitating hardness measurement of a rock sample involves receiving force information representing forces applied to the rock sample during roll crushing, determining size information representing a size of the rock sample, and determining, based on at least the force information and the size information, at least one hardness parameter representing hardness of the rock sample. A method of facilitating hardness measurement of a...