ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,189, issued on Sept. 16, was assigned to Rockburst Technologies Inc. (Vancouver, Canada).
"Transcritical CO 2 pulverization" was invented by Clifford Edwards (Vancouver, Canada), Peter Von Behrens (Vancouver, Canada) and Rob Stephens (Vancouver, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for comminution of solid materials. Solid materials are introduced into a first pressure vessel. A working fluid is provided in the first pressure vessel at an operating pressure and an operating temperature. The working fluid is allowed to permeate into the solid materials. The working fluid may permeate into the solid materials wh...