ALEXANDRIA, Va., June 16 -- United States Patent no. 12,655,061, issued on June 16, was assigned to Carbon Technology Holdings LLC (Oakdale, Minn.).

"Biocarbon compositions with optimized compositional parameters, and processes for producing the same" was invented by James A. Mennell (Brighton, Utah), Dustin Slack (Gwinn, Mich.) and Daren Daugaard (Newburg, Mo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In some variations, the disclosure provides a renewable biocarbon composition comprising from 50 wt % to 99 wt % total carbon, wherein the biocarbon composition is characterized by a base-acid ratio selected from 0.1 to 10, an iron-calcium ratio selected from 0.05 to 5, iron-plus-calcium parameter selecte...